FPUS55 KPSR 200816 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 115 AM MST Wed May 20 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>544-546-548-550-551-201100- 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 115 AM MST Wed May 20 2026 .TONIGHT...Partly cloudy. Lows 59 to 69. South wind around 5 mph. .WEDNESDAY...Sunny and warmer. Highs 89 to 94. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 59 to 69. Southwest wind 5 to 10 mph in the evening becoming east around 5 mph after midnight. .THURSDAY...Sunny. Highs 91 to 96. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 61 to 70. West wind 5 to 10 mph. .FRIDAY...Sunny. Highs 92 to 98. .FRIDAY NIGHT...Mostly clear. Lows 63 to 71. .SATURDAY...Sunny. Highs 94 to 99. .SATURDAY NIGHT...Clear. Lows 65 to 72. .SUNDAY...Sunny. Highs 97 to 102. .SUNDAY NIGHT...Clear. Lows 67 to 74. .MEMORIAL DAY...Sunny. Highs 97 to 102. .MONDAY NIGHT...Clear. Lows 65 to 72. .TUESDAY...Sunny. Highs 95 to 100. $$ AZZ541-549-555-201100- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 115 AM MST Wed May 20 2026 .TONIGHT...Partly cloudy. Lows 56 to 66. East wind around 5 mph. .WEDNESDAY...Sunny and warmer. Highs 89 to 94. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 55 to 65. West wind 5 to 10 mph in the evening becoming east around 5 mph after midnight. .THURSDAY...Sunny. Highs 90 to 95. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 56 to 66. Northwest wind 5 to 10 mph in the evening becoming light after midnight. .FRIDAY...Sunny. Highs in the lower to mid 90s. .FRIDAY NIGHT...Mostly clear. Lows 62 to 69. .SATURDAY...Sunny. Highs in the 90s. .SATURDAY NIGHT...Clear. Lows 64 to 70. .SUNDAY...Sunny. Highs 96 to 100. .SUNDAY NIGHT...Clear. Lows 66 to 71. .MEMORIAL DAY...Mostly sunny. Highs 96 to 100. .MONDAY NIGHT...Clear. Lows 65 to 70. .TUESDAY...Sunny. Highs in the mid to upper 90s. $$ AZZ553-554-201100- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 115 AM MST Wed May 20 2026 .TONIGHT...Partly cloudy. Lows 56 to 66. South wind around 5 mph. .WEDNESDAY...Partly sunny in the morning then becoming sunny. Warmer. Highs 90 to 95. Southwest wind 5 to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 55 to 65. West wind 5 to 10 mph in the evening becoming southeast around 5 mph after midnight. .THURSDAY...Sunny. Highs 91 to 96. Southeast wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 56 to 66. West wind 5 to 10 mph in the evening becoming south around 5 mph after midnight. .FRIDAY...Sunny. Highs 91 to 97. .FRIDAY NIGHT...Mostly clear. Lows 61 to 68. .SATURDAY...Sunny. Highs 92 to 98. .SATURDAY NIGHT...Clear. Lows 62 to 70. .SUNDAY...Sunny. Highs 95 to 101. .SUNDAY NIGHT...Clear. Lows 64 to 71. .MEMORIAL DAY...Sunny. Highs 96 to 102. .MONDAY NIGHT...Mostly clear. Lows 62 to 69. .TUESDAY...Sunny. Highs 94 to 100. $$ AZZ532-201100- Yuma- Including the cities of Yuma and Fortuna Foothills 115 AM MST Wed May 20 2026 .TONIGHT...Clear and cooler. Lows 58 to 61. Light wind. .WEDNESDAY...Sunny. Highs near 95. Northwest wind 5 to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 60 to 63. Southwest wind 5 to 10 mph in the evening becoming southeast after midnight. .THURSDAY...Sunny. Highs near 97. South wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 62 to 65. South wind 5 to 15 mph. .FRIDAY...Sunny. Highs in the mid to upper 90s. .FRIDAY NIGHT...Clear. Lows 62 to 67. .SATURDAY...Sunny. Highs in the mid to upper 90s. .SATURDAY NIGHT...Clear. Lows 62 to 67. .SUNDAY...Sunny. Highs 98 to 100. .SUNDAY NIGHT...Clear. Lows 63 to 68. .MEMORIAL DAY...Sunny. Highs 99 to 101. .MONDAY NIGHT...Clear. Lows 63 to 68. .TUESDAY...Sunny. Highs in the mid to upper 90s. $$ AZZ562-201100- Globe/Miami- Including the cities of Globe and Miami 115 AM MST Wed May 20 2026 .TONIGHT...Partly cloudy. Lows 50 to 60. Light wind. .WEDNESDAY...Partly cloudy in the morning then becoming mostly sunny. Highs 78 to 88. Southeast wind 5 to 10 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 48 to 58. West wind 10 to 15 mph in the evening becoming southwest around 5 mph after midnight. .THURSDAY...Sunny. Highs 79 to 89. South wind 5 to 10 mph in the morning becoming west 10 to 15 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 48 to 58. West wind 10 to 15 mph in the evening becoming southwest around 5 mph after midnight. .FRIDAY...Sunny. Highs 85 to 91. .FRIDAY NIGHT...Mostly clear. Lows near 60. .SATURDAY...Sunny. Highs 86 to 92. .SATURDAY NIGHT...Clear. Lows in the lower 60s. .SUNDAY...Sunny. Highs 90 to 96. .SUNDAY NIGHT...Clear. Lows in the lower to mid 60s. .MEMORIAL DAY...Sunny in the morning then becoming partly sunny. Highs 89 to 95. .MONDAY NIGHT...Partly cloudy. A 10 percent chance of thunderstorms in the evening. Lows in the lower 60s. .TUESDAY...Sunny. Highs 86 to 92. $$ AZZ545-547-552-556>558-561-201100- New River Mesa-Rio Verde/Salt River-Superior-Tonto Basin- Mazatzal Mountains-Pinal/Superstition Mountains-Dripping Springs- Including the cities of Tortilla Flat, Superior, Punkin Center, Sunflower, Hayden, and Winkelman 115 AM MST Wed May 20 2026 .TONIGHT...Partly cloudy. Lows 54 to 64. Southeast wind around 5 mph. .WEDNESDAY...Partly sunny in the morning then becoming sunny. Highs 87 to 92. South wind 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 54 to 64. West wind 10 to 15 mph in the evening becoming southeast around 5 mph after midnight. .THURSDAY...Sunny. Highs 88 to 93. South wind 10 to 15 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 55 to 65. West wind 10 to 15 mph in the evening becoming east around 5 mph after midnight. .FRIDAY...Sunny. Highs 79 to 95. .FRIDAY NIGHT...Mostly clear. Lows 54 to 67. .SATURDAY...Sunny. Highs 80 to 96. .SATURDAY NIGHT...Clear. Lows 56 to 67. .SUNDAY...Sunny. Highs 84 to 100. .SUNDAY NIGHT...Clear. Lows 59 to 70. .MEMORIAL DAY...Sunny in the morning then becoming partly sunny. Highs 84 to 100. .MONDAY NIGHT...Mostly clear. A 10 percent chance of thunderstorms in the evening. Lows 57 to 68. .TUESDAY...Sunny. Highs 81 to 97. $$ AZZ560-563-201100- San Carlos-Southeast Gila County- Including the cities of San Carlos and Peridot 115 AM MST Wed May 20 2026 .TONIGHT...Partly cloudy. Lows 53 to 63. Light wind. .WEDNESDAY...Considerable cloudiness in the morning then becoming partly sunny. Highs 78 to 88. South wind 5 to 15 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 51 to 61. West wind 10 to 15 mph in the evening becoming north around 5 mph after midnight. .THURSDAY...Sunny. Highs 79 to 89. Southwest wind 5 to 15 mph. .THURSDAY NIGHT...Clear. Lows 51 to 61. Northwest wind 10 to 15 mph in the evening becoming northeast around 5 mph after midnight. .FRIDAY...Sunny. Highs 77 to 91. .FRIDAY NIGHT...Mostly clear. Lows 40 to 63. .SATURDAY...Sunny. Highs 78 to 92. .SATURDAY NIGHT...Clear. Lows 44 to 64. .SUNDAY...Sunny. Highs 82 to 96. .SUNDAY NIGHT...Clear. Lows 46 to 66. .MEMORIAL DAY...Mostly sunny. A 10 percent chance of thunderstorms in the afternoon. Highs 81 to 95. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 44 to 64. .TUESDAY...Sunny. Highs 78 to 92. $$ AZZ539-559-201100- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 115 AM MST Wed May 20 2026 .TONIGHT...Partly cloudy. Lows 57 to 67. South wind around 5 mph. .WEDNESDAY...Sunny. Highs 90 to 95. Southwest wind 5 to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 56 to 66. South wind 5 to 10 mph. .THURSDAY...Sunny. Highs 92 to 97. Southeast wind 5 to 10 mph in the morning becoming west in the afternoon. .THURSDAY NIGHT...Clear. Lows 59 to 69. Southwest wind 5 to 10 mph. .FRIDAY...Sunny. Highs 92 to 98. .FRIDAY NIGHT...Mostly clear. Lows 63 to 70. .SATURDAY...Sunny. Highs 93 to 99. .SATURDAY NIGHT...Clear. Lows 65 to 70. .SUNDAY...Sunny. Highs 96 to 101. .SUNDAY NIGHT...Clear. Lows 66 to 73. .MEMORIAL DAY...Sunny. Highs 95 to 102. .MONDAY NIGHT...Clear. Lows 65 to 71. .TUESDAY...Sunny. Highs 92 to 100. $$ AZZ534-538-201100- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 115 AM MST Wed May 20 2026 .TONIGHT...Mostly clear. Lows 55 to 65. Northwest wind around 5 mph. .WEDNESDAY...Sunny. Highs 88 to 93. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 55 to 65. Southwest wind 5 to 10 mph in the evening becoming southeast after midnight. .THURSDAY...Sunny. Highs 91 to 96. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 57 to 67. Southwest wind 5 to 10 mph. .FRIDAY...Sunny. Highs 89 to 97. .FRIDAY NIGHT...Mostly clear. Lows 59 to 70. .SATURDAY...Sunny. Highs 90 to 98. .SATURDAY NIGHT...Clear. Lows 61 to 71. .SUNDAY...Sunny. Highs 94 to 100. .SUNDAY NIGHT...Clear. Lows 63 to 73. .MEMORIAL DAY...Sunny. Highs 93 to 101. .MONDAY NIGHT...Clear. Lows 61 to 71. .TUESDAY...Sunny. Highs 91 to 99. $$ AZZ531-533-201100- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 115 AM MST Wed May 20 2026 .TONIGHT...Clear. Lows 55 to 65. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 89 to 94. North wind 5 to 10 mph in the morning becoming west in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 56 to 66. Southwest wind 5 to 10 mph in the evening becoming southeast after midnight. .THURSDAY...Sunny. Highs 92 to 97. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 58 to 68. South wind 5 to 10 mph. .FRIDAY...Sunny. Highs 90 to 98. .FRIDAY NIGHT...Clear. Lows 60 to 70. .SATURDAY...Sunny. Highs 90 to 98. .SATURDAY NIGHT...Clear. Lows 61 to 71. .SUNDAY...Sunny. Highs 93 to 101. .SUNDAY NIGHT...Clear. Lows 62 to 72. .MEMORIAL DAY...Sunny. Highs 93 to 101. .MONDAY NIGHT...Clear. Lows 61 to 70. .TUESDAY...Sunny. Highs 90 to 98. $$ AZZ535-536-201100- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 115 AM MST Wed May 20 2026 .TONIGHT...Mostly clear. Lows 55 to 65. West wind around 5 mph. .WEDNESDAY...Sunny. Highs 91 to 96. West wind 5 to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 55 to 65. Southwest wind 5 to 10 mph in the evening becoming south after midnight. .THURSDAY...Sunny. Highs 92 to 97. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 56 to 66. South wind 5 to 10 mph. .FRIDAY...Sunny. Highs 92 to 98. .FRIDAY NIGHT...Clear. Lows 60 to 68. .SATURDAY...Sunny. Highs 92 to 98. .SATURDAY NIGHT...Clear. Lows 60 to 68. .SUNDAY...Sunny. Highs 95 to 101. .SUNDAY NIGHT...Clear. Lows 62 to 70. .MEMORIAL DAY...Sunny. Highs 96 to 102. .MONDAY NIGHT...Clear. Lows 60 to 68. .TUESDAY...Sunny. Highs 93 to 99. $$ AZZ530-CAZ569-201100- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 115 AM MST Wed May 20 2026 /115 AM PDT Wed May 20 2026/ .TONIGHT...Clear. Lows 53 to 63. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 92 to 97. North wind 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 55 to 65. Southwest wind 5 to 10 mph. .THURSDAY...Sunny. Highs 95 to 100. South wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 57 to 67. South wind 10 to 15 mph. .FRIDAY...Sunny. Highs 95 to 101. .FRIDAY NIGHT...Clear. Lows 60 to 68. .SATURDAY...Sunny. Highs 94 to 100. .SATURDAY NIGHT...Clear. Lows 60 to 68. .SUNDAY...Sunny. Highs 97 to 103. .SUNDAY NIGHT...Clear. Lows 61 to 69. .MEMORIAL DAY...Sunny. Highs 98 to 102. .MONDAY NIGHT...Clear. Lows 61 to 69. .TUESDAY...Sunny. Highs 96 to 100. $$ CAZ564-565-568-570-201100- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Chuckwalla Valley- Including the cities of Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, and Midland 115 AM PDT Wed May 20 2026 .TONIGHT...Clear. Lows 55 to 65. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 91 to 96. Northwest wind 10 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 57 to 67. West wind 5 to 10 mph. .THURSDAY...Sunny. Highs 94 to 99. Southeast wind 5 to 10 mph in the morning becoming south in the afternoon. .THURSDAY NIGHT...Clear. Lows 59 to 69. South wind 5 to 10 mph. .FRIDAY...Sunny. Highs 89 to 99. .FRIDAY NIGHT...Clear. Lows 62 to 70. .SATURDAY...Sunny. Highs 89 to 99. .SATURDAY NIGHT...Clear. Lows 62 to 70. .SUNDAY...Sunny. Highs 89 to 101. .SUNDAY NIGHT...Clear. Lows 63 to 71. .MEMORIAL DAY...Sunny. Highs 91 to 101. .MONDAY NIGHT...Clear. Lows 62 to 70. .TUESDAY...Sunny. Highs 88 to 99. $$ CAZ563-567-201100- Salton Sea-Imperial Valley- Including the cities of Desert Shores, El Centro, Calexico, Alamorio, and Brawley 115 AM PDT Wed May 20 2026 .TONIGHT...Clear. Lows 59 to 69. West wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 93 to 98. Northwest wind 5 to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 61 to 71. West wind 5 to 10 mph. .THURSDAY...Sunny. Highs 95 to 100. Southeast wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 61 to 71. South wind 5 to 10 mph. .FRIDAY...Sunny. Highs 92 to 100. .FRIDAY NIGHT...Clear. Lows 62 to 72. .SATURDAY...Sunny. Highs 92 to 100. .SATURDAY NIGHT...Clear. Lows 63 to 71. .SUNDAY...Sunny. Highs 93 to 101. .SUNDAY NIGHT...Clear. Lows 63 to 72. .MEMORIAL DAY...Sunny. Highs 94 to 102. .MONDAY NIGHT...Clear. Lows 62 to 70. .TUESDAY...Sunny. Highs 91 to 99. $$ CAZ566-201100- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 115 AM PDT Wed May 20 2026 .TONIGHT...Clear. Lows 60 to 70. West wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 93 to 98. Northwest wind 5 to 10 mph in the morning becoming northeast in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 63 to 73. West wind 5 to 15 mph. .THURSDAY...Sunny. Highs 96 to 101. Southeast wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 63 to 73. West wind 5 to 15 mph. .FRIDAY...Sunny. Highs 97 to 101. .FRIDAY NIGHT...Clear. Lows 66 to 74. .SATURDAY...Sunny. Highs 97 to 101. .SATURDAY NIGHT...Clear. Lows 68 to 74. .SUNDAY...Sunny. Highs 98 to 102. .SUNDAY NIGHT...Clear. Lows 68 to 73. .MEMORIAL DAY...Sunny. Highs 99 to 103. .MONDAY NIGHT...Clear. Lows 65 to 71. .TUESDAY...Sunny. Highs in the mid to upper 90s. $$ CAZ562-201100- Imperial County Southwest- Including the city of Mountain Spring 115 AM PDT Wed May 20 2026 .TONIGHT...Clear and warmer. Lows 64 to 74. West wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 93 to 98. North wind 5 to 10 mph in the morning becoming northeast in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 67 to 77. West wind 10 to 15 mph. .THURSDAY...Sunny. Highs 95 to 100. Southeast wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 67 to 77. Southwest wind 5 to 15 mph. .FRIDAY...Sunny. Highs 90 to 100. .FRIDAY NIGHT...Clear. Lows 64 to 77. .SATURDAY...Sunny. Highs 90 to 100. .SATURDAY NIGHT...Clear. Lows 64 to 77. .SUNDAY...Sunny. Highs 92 to 102. .SUNDAY NIGHT...Clear. Lows 64 to 77. .MEMORIAL DAY...Sunny. Highs 91 to 103. .MONDAY NIGHT...Clear. Lows 60 to 73. .TUESDAY...Sunny. Not as warm. Highs 86 to 98. $$ CAZ560-561-201100- Joshua Tree NP West-Joshua Tree NP East- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 115 AM PDT Wed May 20 2026 .TONIGHT...Clear. Lows 54 to 64. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 80 to 90. North wind 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 58 to 68. Northwest wind 5 to 10 mph. .THURSDAY...Sunny. Highs 84 to 94. Northwest wind 5 to 10 mph in the morning becoming south in the afternoon. .THURSDAY NIGHT...Clear. Lows 60 to 70. West wind 5 to 15 mph. .FRIDAY...Sunny. Highs 79 to 95. .FRIDAY NIGHT...Clear. Lows 53 to 71. .SATURDAY...Sunny. Highs 78 to 94. .SATURDAY NIGHT...Clear. Lows 53 to 70. .SUNDAY...Sunny. Highs 81 to 95. .SUNDAY NIGHT...Clear. Lows 53 to 70. .MEMORIAL DAY...Sunny. Highs 82 to 96. .MONDAY NIGHT...Clear. Lows 52 to 70. .TUESDAY...Sunny. Highs 79 to 93. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix