FPUS55 KPSR 231011 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 311 AM MST Sun Aug 23 2026 This is an automatically generated product that provides average values for large geographical areas and may not be representative of the exact location that you are interested in. For a more site specific forecast, please visit weather.gov/phoenix and either (1) Select a location from the dropdown menu above the map or (2) Click a location on the map. You can refine your selection by clicking on the map displayed on the resulting page. AZZ537-540-542>544-546-548-550-551-231115- Northwest Valley-Buckeye/Avondale-Deer Valley-Central Phoenix- North Phoenix/Glendale-Scottsdale/Paradise Valley-East Valley- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Sun Lakes, and Queen Creek 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy. Lows 84 to 90. East wind around 5 mph. .SUNDAY...Partly sunny and hot. Highs 107 to 112. Southwest wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 81 to 89. West wind 5 to 15 mph. Chance of rain 20 percent. .MONDAY...Partly cloudy in the morning then becoming mostly sunny. Highs 105 to 109. West wind 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 81 to 88. Northwest wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 109 to 113. .TUESDAY NIGHT...Mostly clear. Lows 84 to 91. .WEDNESDAY...Mostly sunny and hot. Highs 109 to 114. .WEDNESDAY NIGHT...Mostly clear. Lows 85 to 91. .THURSDAY...Mostly sunny and hot. Highs 110 to 115. .THURSDAY NIGHT...Mostly clear. Lows 84 to 90. .FRIDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 110 to 116. .FRIDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 86 to 92. .SATURDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 110 to 115. $$ AZZ541-549-555-231115- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy. Lows 78 to 88. Northeast wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 105 to 110. South wind 5 to 10 mph in the morning becoming southwest in the afternoon. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 75 to 85. North wind 5 to 15 mph. Chance of rain 20 percent. .MONDAY...Partly sunny in the morning then becoming mostly sunny. Highs 103 to 108. West wind 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 75 to 85. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .TUESDAY...Sunny and hot. Highs 108 to 112. .TUESDAY NIGHT...Mostly clear. Lows 81 to 87. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 112. .WEDNESDAY NIGHT...Mostly clear. Lows 82 to 88. .THURSDAY...Mostly sunny and hot. Highs 109 to 113. .THURSDAY NIGHT...Mostly clear. Lows 82 to 88. .FRIDAY...Mostly sunny and hot. Highs 109 to 113. .FRIDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 83 to 89. .SATURDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 109 to 113. $$ AZZ553-554-231115- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy. Lows 78 to 88. Southeast wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 107 to 112. South wind 5 to 10 mph in the morning becoming northwest in the afternoon. .SUNDAY NIGHT...Patchy blowing dust in the evening. Partly cloudy with a slight chance of showers and thunderstorms. Lows 77 to 87. Southwest wind 5 to 15 mph. Chance of rain 20 percent. .MONDAY...Partly sunny in the morning then becoming sunny. Highs 104 to 109. Southwest wind around 5 mph in the morning becoming northwest 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 77 to 87. West wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 107 to 113. .TUESDAY NIGHT...Partly cloudy. Lows 82 to 89. .WEDNESDAY...Mostly sunny and hot. Highs 107 to 113. .WEDNESDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 83 to 90. .THURSDAY...Mostly sunny and hot. Highs 108 to 114. .THURSDAY NIGHT...Mostly clear. Lows 82 to 89. .FRIDAY...Mostly sunny and very hot. Highs 109 to 115. .FRIDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 83 to 90. .SATURDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 108 to 114. $$ AZZ532-231115- Yuma- Including the cities of Yuma and Fortuna Foothills 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Mostly clear and warmer. Lows 88 to 89. South wind 5 to 10 mph. .SUNDAY...Mostly sunny and hot. Highs near 111. South wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 84 to 86. South wind 5 to 15 mph. .MONDAY...Partly sunny in the morning then becoming mostly sunny. Highs near 109. South wind 5 to 15 mph. .MONDAY NIGHT...Clear. Lows 84 to 87. South wind around 5 mph. .TUESDAY...Sunny and hot. Highs 111 to 115. .TUESDAY NIGHT...Mostly clear. Lows near 90. .WEDNESDAY...Mostly sunny and hot. Highs 112 to 115. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .THURSDAY...Mostly sunny and hot. Highs 113 to 115. .THURSDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .FRIDAY...Mostly sunny and hot. Highs 113 to 115. .FRIDAY NIGHT...Mostly clear. Lows near 90. .SATURDAY...Partly sunny and very hot. Highs 114 to 116. $$ AZZ562-231115- Globe/Miami- Including the cities of Globe and Miami 311 AM MST Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 68 to 78. Southeast wind around 5 mph. .SUNDAY...Mostly sunny with a slight chance of afternoon showers and thunderstorms. Highs 95 to 105. North wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. Chance of rain 10 percent. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 67 to 77. Northwest wind 5 to 10 mph. Chance of rain 10 percent. .MONDAY...Mostly sunny. Highs 92 to 102. Northwest wind 5 to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows 67 to 77. Northwest wind 5 to 10 mph in the evening becoming north after midnight. .TUESDAY...Mostly sunny. Highs 100 to 106. .TUESDAY NIGHT...Partly cloudy. Lows in the mid to upper 70s. .WEDNESDAY...Mostly sunny. Highs 101 to 107. .WEDNESDAY NIGHT...Partly cloudy. Lows in the mid to upper 70s. .THURSDAY...Mostly sunny. Highs 101 to 107. .THURSDAY NIGHT...Mostly clear. Lows in the mid to upper 70s. .FRIDAY...Partly sunny in the morning then becoming sunny. Highs 101 to 107. .FRIDAY NIGHT...Partly cloudy. Lows near 80. .SATURDAY...Partly sunny in the morning then becoming sunny. Highs 102 to 108. $$ AZZ556>558-561-231115- Tonto Basin-Mazatzal Mountains-Pinal/Superstition Mountains- Dripping Springs- Including the cities of Punkin Center, Sunflower, Hayden, and Winkelman 311 AM MST Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 72 to 82. East wind 5 to 10 mph. .SUNDAY...Partly sunny. A slight chance of afternoon showers and thunderstorms. Highs 102 to 107. Southeast wind 5 to 10 mph in the morning becoming west 10 to 15 mph in the afternoon. Chance of rain 10 percent. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 71 to 81. Northwest wind 5 to 15 mph. Chance of rain 10 percent. .MONDAY...Mostly sunny. Highs 100 to 105. West wind 5 to 15 mph. .MONDAY NIGHT...Partly cloudy. Lows 71 to 81. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .TUESDAY...Mostly sunny. Highs 93 to 107. .TUESDAY NIGHT...Partly cloudy. Lows 70 to 83. .WEDNESDAY...Mostly sunny. Highs 94 to 108. .WEDNESDAY NIGHT...Partly cloudy. Lows 70 to 83. .THURSDAY...Mostly sunny and hot. Highs 94 to 110. .THURSDAY NIGHT...Mostly clear. Lows 70 to 83. .FRIDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 94 to 110. .FRIDAY NIGHT...Partly cloudy. Lows 71 to 84. .SATURDAY...Partly sunny in the morning then becoming sunny. Highs 95 to 109. $$ AZZ545-547-552-231115- New River Mesa-Rio Verde/Salt River-Superior- Including the cities of Tortilla Flat and Superior 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy. Lows 76 to 86. Northeast wind 5 to 10 mph. .SUNDAY...Partly sunny. A slight chance of afternoon showers and thunderstorms. Hot. Highs 105 to 110. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. Chance of rain 10 percent. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 75 to 85. North wind 5 to 15 mph. Chance of rain 20 percent. .MONDAY...Partly sunny in the morning then becoming mostly sunny. Highs 103 to 108. West wind 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 75 to 85. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .TUESDAY...Sunny and hot. Highs 101 to 111. .TUESDAY NIGHT...Partly cloudy. Lows 77 to 87. .WEDNESDAY...Mostly sunny and hot. Highs 102 to 112. .WEDNESDAY NIGHT...Mostly clear. Lows 78 to 88. .THURSDAY...Mostly sunny and hot. Highs 103 to 113. .THURSDAY NIGHT...Mostly clear. Lows 78 to 88. .FRIDAY...Mostly sunny and hot. Highs 103 to 113. .FRIDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 79 to 89. .SATURDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 103 to 113. $$ AZZ560-231115- San Carlos- Including the cities of San Carlos and Peridot 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy. Lows 70 to 80. Northwest wind around 5 mph. .SUNDAY...Partly sunny in the morning then becoming mostly sunny. Highs 99 to 109. West wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 68 to 78. Northwest wind 5 to 15 mph. Chance of rain 10 percent. .MONDAY...Mostly sunny in the morning then becoming partly sunny. Highs 97 to 107. West wind 5 to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows 69 to 79. Northwest wind 5 to 10 mph. .TUESDAY...Mostly sunny and hot. Highs 104 to 110. .TUESDAY NIGHT...Partly cloudy. Lows near 80. .WEDNESDAY...Mostly sunny and hot. Highs 105 to 111. .WEDNESDAY NIGHT...Partly cloudy. Lows near 80. .THURSDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 111. .THURSDAY NIGHT...Partly cloudy. Lows near 80. .FRIDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 111. .FRIDAY NIGHT...Partly cloudy. Lows near 80. .SATURDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 111. $$ AZZ563-231115- Southeast Gila County- 311 AM MST Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 68 to 78. East wind 5 to 10 mph. .SUNDAY...Partly sunny. A slight chance of afternoon showers and thunderstorms. Highs 92 to 102. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. Chance of rain 10 percent. .SUNDAY NIGHT...Partly cloudy. Lows 67 to 77. North wind 5 to 15 mph. .MONDAY...Partly sunny. Highs 91 to 101. Northwest wind 5 to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows 67 to 77. North wind 5 to 15 mph. .TUESDAY...Mostly sunny. Highs 91 to 103. .TUESDAY NIGHT...Partly cloudy. Lows 59 to 78. .WEDNESDAY...Partly sunny. Highs 92 to 104. .WEDNESDAY NIGHT...Partly cloudy. Lows 60 to 79. .THURSDAY...Partly sunny. Highs 92 to 104. .THURSDAY NIGHT...Partly cloudy. Lows 61 to 79. .FRIDAY...Mostly sunny. Highs 93 to 105. .FRIDAY NIGHT...Partly cloudy. Lows 62 to 80. .SATURDAY...Partly sunny in the morning then becoming sunny. Highs 93 to 105. $$ AZZ539-559-231115- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy. Lows 80 to 90. South wind 5 to 10 mph. .SUNDAY...Mostly sunny with a slight chance of afternoon showers and thunderstorms. Hot. Highs 108 to 113. Southwest wind 5 to 10 mph. Chance of rain 10 percent. .SUNDAY NIGHT...Patchy blowing dust in the evening. Partly cloudy with a slight chance of showers and thunderstorms. Lows 77 to 87. Southwest wind 5 to 15 mph. Chance of rain 20 percent. .MONDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 110. South wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 77 to 87. West wind around 5 mph. .TUESDAY...Sunny and very hot. Highs 105 to 115. .TUESDAY NIGHT...Partly cloudy. Lows 83 to 89. .WEDNESDAY...Partly sunny and very hot. Highs 106 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 89. .THURSDAY...Mostly sunny and very hot. Highs 107 to 116. .THURSDAY NIGHT...Mostly clear. Lows 84 to 89. .FRIDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 108 to 116. .FRIDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 84 to 90. .SATURDAY...Partly sunny and very hot. Highs 108 to 116. $$ AZZ534-538-231115- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy. Lows 79 to 89. East wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 108 to 113. South wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 76 to 86. Southwest wind 5 to 15 mph. Chance of rain 20 percent. .MONDAY...Partly sunny in the morning then becoming mostly sunny. Highs 104 to 109. South wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 76 to 86. Northwest wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 106 to 114. .TUESDAY NIGHT...Mostly clear. Lows 81 to 89. .WEDNESDAY...Mostly sunny and very hot. Highs 108 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 89. .THURSDAY...Mostly sunny and very hot. Highs 108 to 116. .THURSDAY NIGHT...Mostly clear. Lows 81 to 89. .FRIDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 108 to 116. .FRIDAY NIGHT...Partly cloudy. Lows 82 to 90. .SATURDAY...Partly sunny and very hot. Highs 108 to 116. $$ AZZ531-533-231115- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 80 to 90. Southeast wind around 5 mph. Chance of rain 10 percent. .SUNDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Hot. Highs 108 to 113. South wind 5 to 10 mph. Chance of rain 10 percent. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 76 to 86. Southwest wind 10 to 15 mph in the evening becoming southeast 5 to 10 mph after midnight. Chance of rain 10 percent. .MONDAY...Partly sunny in the morning then becoming mostly sunny. Highs 104 to 109. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 76 to 86. Southwest wind 5 to 10 mph in the evening becoming northwest around 5 mph after midnight. .TUESDAY...Sunny and hot. Highs 105 to 113. .TUESDAY NIGHT...Mostly clear. Lows 81 to 89. .WEDNESDAY...Mostly sunny and very hot. Highs 107 to 115. .WEDNESDAY NIGHT...Mostly clear. Lows 82 to 89. .THURSDAY...Mostly sunny and very hot. Highs 107 to 115. .THURSDAY NIGHT...Mostly clear. Lows 82 to 88. .FRIDAY...Partly sunny and very hot. Highs 108 to 116. .FRIDAY NIGHT...Mostly clear. Lows 83 to 90. .SATURDAY...Partly sunny and very hot. Highs 108 to 116. $$ AZZ535-536-231115- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 311 AM MST Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SATURDAY... .TONIGHT...Mostly clear. Lows 79 to 89. South wind 10 to 15 mph. .SUNDAY...Mostly sunny and hot. Highs 108 to 113. Southwest wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 76 to 86. South wind 10 to 15 mph. .MONDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 110. South wind 5 to 10 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 77 to 87. Southwest wind around 5 mph in the evening becoming light after midnight. .TUESDAY...Sunny and hot. Highs 110 to 114. .TUESDAY NIGHT...Mostly clear. Lows 85 to 90. .WEDNESDAY...Mostly sunny and very hot. Highs 109 to 115. .WEDNESDAY NIGHT...Mostly clear. Lows 84 to 89. .THURSDAY...Mostly sunny and very hot. Highs 110 to 116. .THURSDAY NIGHT...Mostly clear. Lows 83 to 88. .FRIDAY...Mostly sunny and very hot. Highs 111 to 117. .FRIDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 84 to 90. .SATURDAY...Partly sunny and very hot. Highs 111 to 117. $$ AZZ530-CAZ569-231115- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 311 AM MST Sun Aug 23 2026 /311 AM PDT Sun Aug 23 2026/ ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST /8 PM PDT/ SATURDAY... .TONIGHT...Mostly clear. Lows 80 to 90. Southwest wind around 5 mph. .SUNDAY...Mostly sunny and very hot. Highs 110 to 115. South wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 77 to 87. South wind 5 to 15 mph. .MONDAY...Mostly sunny and hot. Highs 106 to 111. South wind 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 76 to 86. South wind 5 to 10 mph. .TUESDAY...Sunny and very hot. Highs 109 to 115. .TUESDAY NIGHT...Mostly clear. Lows 83 to 89. .WEDNESDAY...Mostly sunny and very hot. Highs 110 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 89. .THURSDAY...Mostly sunny and very hot. Highs 111 to 117. .THURSDAY NIGHT...Mostly clear. Lows 83 to 89. .FRIDAY...Mostly sunny and very hot. Highs 111 to 117. .FRIDAY NIGHT...Mostly clear. Lows 84 to 90. .SATURDAY...Mostly sunny and very hot. Highs 111 to 117. $$ CAZ565-570-231115- Imperial County Southeast-Chuckwalla Valley- Including the cities of Winterhaven and Midland 311 AM PDT Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SATURDAY... .TONIGHT...Mostly clear. Lows 81 to 91. Northwest wind 5 to 10 mph. .SUNDAY...Sunny and very hot. Highs 110 to 115. South wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 79 to 89. South wind 10 to 15 mph in the evening becoming southeast after midnight. .MONDAY...Mostly sunny and hot. Highs 106 to 111. South wind 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 79 to 89. South wind 5 to 10 mph in the evening becoming west around 5 mph after midnight. .TUESDAY...Sunny and hot. Highs 106 to 114. .TUESDAY NIGHT...Clear. Lows 84 to 91. .WEDNESDAY...Mostly sunny and very hot. Highs 108 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 91. .THURSDAY...Mostly sunny and very hot. Highs 108 to 116. .THURSDAY NIGHT...Mostly clear. Lows 83 to 91. .FRIDAY...Mostly sunny and very hot. Highs 108 to 116. .FRIDAY NIGHT...Mostly clear. Lows 84 to 92. .SATURDAY...Mostly sunny and very hot. Highs 109 to 117. $$ CAZ564-568-231115- Chuckwalla Mountains-Chiriaco Summit- Including the cities of Imperial Hot Mineral Springs and Chiriaco Summit 311 AM PDT Sun Aug 23 2026 .TONIGHT...Mostly clear. Lows 80 to 90. Northwest wind 5 to 10 mph. .SUNDAY...Sunny and hot. Highs 106 to 111. South wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 76 to 86. South wind 5 to 15 mph. .MONDAY...Mostly sunny. Highs 103 to 108. South wind 5 to 10 mph. .MONDAY NIGHT...Clear. Lows 77 to 87. Southwest wind 5 to 10 mph in the evening becoming northwest around 5 mph after midnight. .TUESDAY...Sunny and hot. Highs 101 to 111. .TUESDAY NIGHT...Clear. Lows 80 to 89. .WEDNESDAY...Mostly sunny and hot. Highs 102 to 112. .WEDNESDAY NIGHT...Mostly clear. Lows 80 to 89. .THURSDAY...Mostly sunny and hot. Highs 101 to 113. .THURSDAY NIGHT...Mostly clear. Lows 81 to 89. .FRIDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 103 to 113. .FRIDAY NIGHT...Mostly clear. Lows 81 to 90. .SATURDAY...Mostly sunny and hot. Highs 103 to 113. $$ CAZ563-231115- Salton Sea- Including the city of Desert Shores 311 AM PDT Sun Aug 23 2026 .TONIGHT...Clear. Lows 82 to 92. Northwest wind 10 to 15 mph. .SUNDAY...Mostly sunny and hot. Highs 108 to 113. Southeast wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 80 to 90. Southwest wind 5 to 10 mph in the evening becoming southeast 10 to 15 mph after midnight. .MONDAY...Mostly sunny. Highs 104 to 109. Southeast wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .MONDAY NIGHT...Clear. Lows 81 to 91. Northwest wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 102 to 112. .TUESDAY NIGHT...Clear. Lows 87 to 93. .WEDNESDAY...Mostly sunny and hot. Highs 103 to 113. .WEDNESDAY NIGHT...Partly cloudy. Lows 87 to 93. .THURSDAY...Partly sunny and hot. Highs 103 to 113. .THURSDAY NIGHT...Partly cloudy. Lows 87 to 93. .FRIDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 104 to 114. .FRIDAY NIGHT...Partly cloudy. Lows 89 to 94. .SATURDAY...Mostly sunny and hot. Highs 104 to 114. $$ CAZ567-231115- Imperial Valley- Including the cities of El Centro, Calexico, Alamorio, and Brawley 311 AM PDT Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SATURDAY... .TONIGHT...Clear. Lows 78 to 88. West wind around 5 mph. .SUNDAY...Mostly sunny and very hot. Highs 111 to 116. South wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 77 to 87. South wind 5 to 10 mph. .MONDAY...Sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Hot. Highs 106 to 111. Southeast wind 5 to 10 mph. Chance of rain 10 percent. .MONDAY NIGHT...Clear. Lows 77 to 87. Southwest wind around 5 mph in the evening becoming light after midnight. .TUESDAY...Sunny and hot. Highs 110 to 114. .TUESDAY NIGHT...Clear. Lows in the mid to upper 80s. .WEDNESDAY...Mostly sunny and very hot. Highs 112 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 80s. .THURSDAY...Mostly sunny and very hot. Highs 112 to 116. .THURSDAY NIGHT...Partly cloudy. Lows in the mid to upper 80s. .FRIDAY...Mostly sunny and very hot. Highs 113 to 117. .FRIDAY NIGHT...Partly cloudy. Lows near 90. .SATURDAY...Mostly sunny and very hot. Highs 112 to 118. $$ CAZ566-231115- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 311 AM PDT Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SATURDAY... .TONIGHT...Clear. Lows 81 to 91. West wind 5 to 10 mph. .SUNDAY...Sunny in the morning then becoming partly sunny. Very hot. Highs 112 to 117. Southeast wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 79 to 89. Southwest wind 5 to 15 mph. .MONDAY...Sunny. Hot. Highs 107 to 112. East wind 5 to 10 mph. .MONDAY NIGHT...Clear. Lows 80 to 90. West wind around 5 mph. .TUESDAY...Sunny and very hot. Highs 111 to 115. .TUESDAY NIGHT...Clear. Lows 86 to 91. .WEDNESDAY...Mostly sunny and very hot. Highs 111 to 117. .WEDNESDAY NIGHT...Partly cloudy. Lows near 90. .THURSDAY...Mostly sunny and very hot. Highs 111 to 117. .THURSDAY NIGHT...Partly cloudy. Lows 86 to 91. .FRIDAY...Mostly sunny and very hot. Highs 112 to 118. .FRIDAY NIGHT...Partly cloudy. Lows near 90. .SATURDAY...Sunny and very hot. Highs 113 to 119. $$ CAZ562-231115- Imperial County Southwest- Including the city of Mountain Spring 311 AM PDT Sun Aug 23 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SATURDAY... .TONIGHT...Clear. Lows 83 to 93. Southwest wind 10 to 20 mph. .SUNDAY...Partly sunny with a slight chance of afternoon showers and thunderstorms. Hot. Highs 109 to 114. Southeast wind 10 to 15 mph. Chance of rain 10 percent. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 81 to 91. Southwest wind 10 to 20 mph. .MONDAY...Mostly sunny. Hot. Highs 106 to 111. North wind 5 to 10 mph in the morning becoming east in the afternoon. .MONDAY NIGHT...Clear. Lows 81 to 91. Southwest wind 10 to 15 mph. .TUESDAY...Sunny and hot. Highs 103 to 113. .TUESDAY NIGHT...Clear. Lows 83 to 93. .WEDNESDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 105 to 115. .WEDNESDAY NIGHT...Partly cloudy. Lows 83 to 93. .THURSDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 106 to 116. .THURSDAY NIGHT...Partly cloudy. Lows 83 to 93. .FRIDAY...Mostly sunny and very hot. Highs 106 to 116. .FRIDAY NIGHT...Mostly clear. Lows 85 to 94. .SATURDAY...Sunny and very hot. Highs 107 to 117. $$ CAZ560-561-231115- Joshua Tree NP West-Joshua Tree NP East- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 311 AM PDT Sun Aug 23 2026 .TONIGHT...Clear. Lows 77 to 87. West wind 5 to 10 mph. .SUNDAY...Sunny and hot. Highs 100 to 110. South wind 5 to 15 mph. .SUNDAY NIGHT...Mostly clear. Lows 76 to 86. West wind 5 to 15 mph. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Not as warm. Highs 95 to 105. Southwest wind 5 to 10 mph. Chance of rain 10 percent. .MONDAY NIGHT...Clear. Lows 76 to 86. West wind 5 to 10 mph. .TUESDAY...Sunny. Highs 94 to 108. .TUESDAY NIGHT...Clear. Lows 70 to 87. .WEDNESDAY...Mostly sunny and hot. Highs 94 to 110. .WEDNESDAY NIGHT...Mostly clear. Lows 70 to 88. .THURSDAY...Mostly sunny and hot. Highs 94 to 110. .THURSDAY NIGHT...Partly cloudy. Lows 70 to 87. .FRIDAY...Partly sunny and hot. Highs 95 to 111. .FRIDAY NIGHT...Mostly clear. Lows 71 to 88. .SATURDAY...Sunny and hot. Highs 95 to 111. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix