FPUS56 KSGX 220825 ZFPSGX Zone Forecast Product for Extreme Southwest California National Weather Service San Diego CA 125 AM PDT Sat Aug 22 2026 CAZ552-222115- Orange County Coastal Areas- Including the cities of Huntington Beach, Costa Mesa, Newport Beach, Laguna Beach, and San Clemente 125 AM PDT Sat Aug 22 2026 .TODAY...Partly cloudy this morning...becoming mostly sunny. Highs 78 to 83 at the beaches to 84 to 89 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph this afternoon. .TONIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69. Areas of winds southwest to 10 mph in the evening becoming light. .SUNDAY...Mostly sunny. Highs 78 to 83 at the beaches to 86 to 91 farther inland and near higher coastal terrain. Light winds becoming west 10 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 66 to 69. Areas of winds west to 10 mph in the evening becoming light. .MONDAY...Mostly sunny. Highs 79 to 84 at the beaches to 85 to 90 farther inland and near higher coastal terrain. Light winds becoming west 10 to 15 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows around 70. .TUESDAY...Mostly sunny. Highs 80 to 85 at the beaches to 87 to 92 farther inland and near higher coastal terrain. .TUESDAY NIGHT...Mostly clear. Lows 69 to 72. .WEDNESDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 80 to 85 at the beaches to 89 to 94 farther inland and near higher coastal terrain. .WEDNESDAY NIGHT...Mostly clear. Lows 69 to 72. .THURSDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 80 to 85 at the beaches to 89 to 94 farther inland and near higher coastal terrain. .THURSDAY NIGHT...Partly cloudy. Lows around 70. .FRIDAY...Partly cloudy. Highs 80 to 85 at the beaches to 89 to 94 farther inland and near higher coastal terrain. $$ CAZ554-222115- Orange County Inland Areas- Including the cities of Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo 125 AM PDT Sat Aug 22 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT MONDAY... .TODAY...Mostly sunny. Highs 86 to 90 towards the coast to 93 to 96 farther inland. Light winds becoming southwest 10 mph this afternoon. .TONIGHT...Mostly clear. Lows 65 to 70. Light winds. .SUNDAY...Mostly sunny. Highs 88 to 92 towards the coast to 96 farther inland. Light winds becoming southwest 10 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 66 to 70. Areas of winds southwest to 10 mph in the evening becoming light. .MONDAY...Mostly sunny. Highs 88 to 92 towards the coast to 94 to 97 farther inland. Light winds becoming west 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 68 to 72. .TUESDAY...Mostly sunny. Highs 90 to 93 towards the coast to 96 to 99 farther inland. .TUESDAY NIGHT...Mostly clear. Lows 69 to 73. .WEDNESDAY...Mostly sunny. Highs 92 to 95 towards the coast to 100 farther inland. .WEDNESDAY NIGHT...Mostly clear. Lows 69 to 74. .THURSDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 91 to 96 towards the coast to 100 farther inland. .THURSDAY NIGHT...Partly cloudy. Lows 68 to 73. .FRIDAY...Partly cloudy. Highs 91 to 96 towards the coast to 100 farther inland. $$ CAZ043-222115- San Diego County Coastal Areas- Including the cities of Oceanside, Vista, Carlsbad, Encinitas, Chula Vista, National City, and San Diego 125 AM PDT Sat Aug 22 2026 .TODAY...Partly cloudy this morning...becoming mostly sunny. Highs 78 to 83 near the coast to 85 to 90 inland. Light winds becoming west 10 mph this afternoon. .TONIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 65 to 70. Light winds. .SUNDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 79 to 84 near the coast to 87 to 92 inland. Areas of winds westto 10 mph. .SUNDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 66 to 70. Areas of winds west to 10 mph in the evening becoming light. .MONDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 79 to 84 near the coast to 86 to 91 inland. Areas of winds north to 10 mph becoming west 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 67 to 71. .TUESDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 80 to 85 near the coast to 88 to 93 inland. .TUESDAY NIGHT...Mostly clear. Lows 67 to 72. .WEDNESDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 80 to 85 near the coast to 90 to 94 inland. .WEDNESDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 68 to 72. .THURSDAY...Partly cloudy. Highs 80 to 85 near the coast to 91 to 95 inland. .THURSDAY NIGHT...Partly cloudy. Lows 68 to 72. .FRIDAY...Partly cloudy. Highs 80 to 85 near the coast to 90 to 95 inland. $$ CAZ050-222115- San Diego County Valleys- Including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway 125 AM PDT Sat Aug 22 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT MONDAY... .TODAY...Mostly sunny. Highs 89 to 94 in the western valleys to 95 to 100 near the foothills. Areas of winds west to 10 mph. .TONIGHT...Mostly clear. Lows 66 to 72. Areas of winds west to 10 mph in the evening becoming light. .SUNDAY...Mostly sunny. Highs 90 to 95 in the western valleys to 96 to 101 near the foothills. Light winds becoming west 10 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 67 to 72. Areas of winds west to 10 mph in the evening becoming light. .MONDAY...Mostly sunny. Highs 90 to 95 in the western valleys to 95 to 100 near the foothills. Light winds becoming west 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 67 to 72. .TUESDAY...Mostly sunny. Highs 91 to 96 in the western valleys to 96 to 101 near the foothills. .TUESDAY NIGHT...Mostly clear. Lows 68 to 73. .WEDNESDAY...Mostly sunny. Highs 93 to 98 in the western valleys to 97 to 102 near the foothills. .WEDNESDAY NIGHT...Mostly clear. Lows 69 to 74. .THURSDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 97 to 102. .THURSDAY NIGHT...Partly cloudy. Lows 69 to 73. .FRIDAY...Partly cloudy. Highs 93 to 98 in the western valleys to 98 to 103 near the foothills. $$ CAZ048-222115- San Bernardino and Riverside County Valleys-The Inland Empire- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, and Corona 125 AM PDT Sat Aug 22 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT MONDAY... .TODAY...Sunny. Highs 99 to 105. Light winds becoming west 10 to 15 mph this afternoon. .TONIGHT...Clear. Lows 66 to 72. Areas of winds west to 10 mph in the evening becoming light. .SUNDAY...Mostly sunny. Highs 99 to 105. Light winds becoming west 10 to 15 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 67 to 72. Areas of winds west to 10 mph in the evening becoming light. .MONDAY...Mostly sunny. Highs 99 to 105. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 67 to 72. .TUESDAY...Sunny. Highs 100 to 107. .TUESDAY NIGHT...Clear. Lows 69 to 73. .WEDNESDAY...Mostly sunny. Highs 101 to 107. .WEDNESDAY NIGHT...Mostly clear. Lows 70 to 73. .THURSDAY...Mostly sunny. Highs 101 to 107. .THURSDAY NIGHT...Partly cloudy. Lows 69 to 73. .FRIDAY...Partly cloudy. Highs 101 to 107. $$ CAZ057-222115- Santa Ana Mountains and Foothills- 125 AM PDT Sat Aug 22 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT MONDAY... .TODAY...Sunny. Highs 91 to 101. Light winds becoming west 10 mph this afternoon. .TONIGHT...Clear. Lows 65 to 74. Areas of winds west to 10 mph in the evening becoming light. .SUNDAY...Mostly sunny. Highs 92 to 102. Light winds becoming west 10 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 66 to 75. Areas of winds west to 10 mph in the evening becoming light. .MONDAY...Mostly sunny. Highs 92 to 102. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 67 to 75. .TUESDAY...Sunny. Highs 94 to 104. .TUESDAY NIGHT...Clear. Lows 69 to 76. .WEDNESDAY...Mostly sunny. Highs 95 to 105. .WEDNESDAY NIGHT...Mostly clear. Lows 69 to 77. .THURSDAY...Mostly sunny. Highs 95 to 104. .THURSDAY NIGHT...Partly cloudy. Lows 68 to 76. .FRIDAY...Partly cloudy. Highs 95 to 105. $$ CAZ055-222115- San Bernardino County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 125 AM PDT Sat Aug 22 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT MONDAY... .TODAY...Sunny. Highs 77 to 87 above 6000 feet to 86 to 96 below 6000 feet. Areas of winds south to 10 mph becoming southwest with gusts to 30 mph this afternoon. .TONIGHT...Clear, cooler. Lows 52 to 62 above 6000 feet to 61 to 71 below 6000 feet. Areas of winds southwest 10 to 15 mph. Gusts to 30 mph...becoming 25 mph overnight. .SUNDAY...Mostly sunny. Highs 76 to 86 above 6000 feet to 86 to 96 below 6000 feet. Areas of winds south 10 to 15 mph. Gusts to 25 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 52 to 62 above 6000 feet to 61 to 71 below 6000 feet. Areas of winds west 10 to 15 mph with gusts to 25 mph. .MONDAY...Mostly sunny. Highs 76 to 86 above 6000 feet to 86 to 95 below 6000 feet. Areas of winds southwest 10 to 15 mph. Gusts to 25 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 56 to 66. .TUESDAY...Mostly sunny. Highs 78 to 88 above 6000 feet to 87 to 97 below 6000 feet. .TUESDAY NIGHT...Mostly clear. Lows 56 to 66. .WEDNESDAY...Mostly sunny. Highs 79 to 89 above 6000 feet to 88 to 97 below 6000 feet. .WEDNESDAY NIGHT...Mostly clear. Lows 57 to 67. .THURSDAY...Mostly sunny. Highs 79 to 89 above 6000 feet to 88 to 97 below 6000 feet. .THURSDAY NIGHT...Partly cloudy. Lows 57 to 67. .FRIDAY...Partly cloudy. Highs 79 to 89 above 6000 feet to 88 to 98 below 6000 feet. $$ CAZ056-222115- Riverside County Mountains- Including the city of Idyllwild-Pine Cove 125 AM PDT Sat Aug 22 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT MONDAY... .TODAY...Sunny. Highs 89 to 99. Areas of winds west to 10 mph... becoming 10 to 15 mph with gusts to 25 mph this afternoon. .TONIGHT...Clear. Lows 60 to 70. Areas of winds west 10 to 15 mph. Gusts to 25 mph in the evening. .SUNDAY...Mostly sunny. Highs 89 to 99. Areas of winds south to 10 mph becoming west 10 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 60 to 70. Areas of winds west 10 to 15 mph with gusts to 25 mph. .MONDAY...Mostly sunny. Highs 87 to 97. Areas of winds west to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 60 to 70. .TUESDAY...Mostly sunny. Highs 89 to 99. .TUESDAY NIGHT...Mostly clear. Lows 61 to 71. .WEDNESDAY...Mostly sunny. Highs 89 to 99. .WEDNESDAY NIGHT...Mostly clear. Lows 62 to 72. .THURSDAY...Mostly sunny. Highs 89 to 99. .THURSDAY NIGHT...Partly cloudy. Lows 62 to 72. .FRIDAY...Partly cloudy. Highs 90 to 100. $$ CAZ058-222115- San Diego County Mountains- Including the cities of Julian and Pine Valley 125 AM PDT Sat Aug 22 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT MONDAY... .TODAY...Sunny. Highs 91 to 100. Areas of winds west to 10 mph... becoming 10 to 15 mph with gusts to 25 mph this afternoon. .TONIGHT...Clear. Lows 64 to 74. Areas of winds west 10 to 15 mph. Gusts to 30 mph...becoming 25 mph overnight. .SUNDAY...Mostly sunny. Highs 91 to 100. Areas of winds southwest to 10 mph becoming west in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 64 to 74. Areas of winds west 10 to 15 mph with gusts to 30 mph...becoming to 10 mph overnight. .MONDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs 90 to 98. Light winds becoming west 10 to 15 mph in the afternoon. Chance of measurable precipitation 20 percent. .MONDAY NIGHT...Mostly clear. Lows 65 to 75. .TUESDAY...Mostly sunny. Highs 91 to 100. .TUESDAY NIGHT...Mostly clear. Lows 66 to 76. .WEDNESDAY...Mostly sunny. Highs 93 to 101. .WEDNESDAY NIGHT...Mostly clear. Lows 66 to 76. .THURSDAY...Mostly sunny. Highs 93 to 101. .THURSDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 66 to 76. .FRIDAY...Partly cloudy. Highs 93 to 101. $$ CAZ060-222115- Apple and Lucerne Valleys- Including the cities of Victorville, Hesperia, Apple Valley, and Lucerne Valley 125 AM PDT Sat Aug 22 2026 .TODAY...Sunny. Highs 100 to 107. Areas of winds west to 10 mph... becoming south 10 to 20 mph with gusts to 30 mph this afternoon. .TONIGHT...Clear. Lows 67 to 75. Areas of winds west 10 to 20 mph. Gusts to 30 mph...becoming 25 mph overnight. .SUNDAY...Mostly sunny. Highs 100 to 107. Areas of winds southwest to 10 mph...becoming 10 to 20 mph with gusts to 30 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 66 to 76. Areas of winds west 10 to 15 mph with gusts to 30 mph becoming southwest overnight. .MONDAY...Mostly sunny. Highs 99 to 105. Light winds becoming southwest 10 to 15 mph with gusts to 30 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 67 to 76. .TUESDAY...Mostly sunny. Highs 100 to 106. .TUESDAY NIGHT...Mostly clear. Lows 68 to 77. .WEDNESDAY...Mostly sunny. Highs 100 to 106. .WEDNESDAY NIGHT...Mostly clear. Lows 68 to 76. .THURSDAY...Mostly sunny. Highs 101 to 107. .THURSDAY NIGHT...Partly cloudy. Lows 67 to 76. .FRIDAY...Mostly sunny in the morning...becoming partly cloudy. Highs 101 to 107. $$ CAZ065-222115- San Gorgonio Pass near Banning- 125 AM PDT Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY... .TODAY...Sunny, hot. Highs around 106 through the pass to 110 to 114 in the northern Coachella Valley. Areas of winds west 10 to 20 mph. Gusts to 25 mph...becoming 30 mph this afternoon. .TONIGHT...Mostly clear. Lows around 78 through the pass to 86 to 89 in the northern Coachella Valley. Areas of winds west 15 to 25 mph. Gusts to 40 mph...becoming 35 mph overnight. .SUNDAY...Mostly sunny. Hot. Highs around 105 through the pass to 108 to 112 in the northern Coachella Valley. Areas of winds west 10 to 15 mph becoming south in the afternoon. Gusts to 25 mph. .SUNDAY NIGHT...Mostly clear. Lows around 78 through the pass to 87 in the northern Coachella Valley. Areas of winds west 10 to 20 mph with gusts to 35 mph. .MONDAY...Mostly sunny. Hot. Highs around 104 through the pass to 110 in the northern Coachella Valley. Areas of winds west 10 to 15 mph with gusts to 30 mph. .MONDAY NIGHT...Mostly clear. Lows 78 to 87. .TUESDAY...Sunny, hot. Highs around 106 through the pass to 109 to 113 in the northern Coachella Valley. .TUESDAY NIGHT...Clear. Lows 79 to 88. .WEDNESDAY...Mostly sunny. Hot. Highs around 106 through the pass to 110 to 114 in the northern Coachella Valley. .WEDNESDAY NIGHT...Mostly clear. Breezy. Lows 79 to 88. .THURSDAY...Mostly sunny. Hot. Highs 105 to 108 through the pass to 110 to 113 in the northern Coachella Valley. .THURSDAY NIGHT...Mostly clear. Lows 79 to 88. .FRIDAY...Partly cloudy. Hot. Highs around 107 through the pass to 110 to 114 in the northern Coachella Valley. $$ CAZ061-222115- Coachella Valley- Including the cities of Indio,Palm Springs, Cathedral City, Palm Desert, Palm Desert Country, La Quinta, and Coachella 125 AM PDT Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY... .TODAY...Sunny. Very hot. Highs 112 to 115. Areas of winds northwest to 10 mph becoming southeast 10 mph this afternoon. .TONIGHT...Mostly clear. Lows 85 to 89. Areas of winds northwest 10 to 15 mph. Gusts to 25 mph in the evening. .SUNDAY...Mostly sunny. Hot. Highs 110 to 113. Areas of winds southeast to 10 mph...becoming 10 to 15 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 85 to 88. Areas of winds north 10 to 15 mph with gusts to 25 mph...becoming to 10 mph overnight. .MONDAY...Mostly sunny. Hot. Highs around 110. Areas of winds south to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 84 to 88. .TUESDAY...Sunny, hot. Highs 110 to 113. .TUESDAY NIGHT...Mostly clear. Lows 85 to 89. .WEDNESDAY...Mostly sunny. Very hot. Highs 112 to 115. .WEDNESDAY NIGHT...Mostly clear. Lows 85 to 90. .THURSDAY...Mostly sunny. Hot. Highs around 113. .THURSDAY NIGHT...Mostly clear. Lows 86 to 89. .FRIDAY...Partly cloudy. Hot. Highs around 113. $$ CAZ062-222115- San Diego County Deserts- Including the city of Borrego Springs 125 AM PDT Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY... .TODAY...Mostly sunny. Very hot. Highs 112 to 116. Areas of winds east to 10 mph...becoming 10 to 15 mph with gusts to 25 mph this afternoon. .TONIGHT...Mostly clear. Lows 84 to 90. Areas of winds west 10 to 15 mph. Gusts to 30 mph...becoming 25 mph overnight. .SUNDAY...Mostly sunny. Very hot. Highs 110 to 115. Areas of winds east to 10 mph becoming southeast with gusts to 30 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 83 to 90. Areas of winds west 10 to 20 mph. Gusts to 25 mph...becoming 30 mph overnight. .MONDAY...Mostly sunny. Hot. Highs 108 to 112. Light winds becoming southeast 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 84 to 90. .TUESDAY...Sunny, hot. Highs 110 to 114. .TUESDAY NIGHT...Mostly clear. Lows 85 to 91. .WEDNESDAY...Mostly sunny. Very hot. Highs 112 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 85 to 91. .THURSDAY...Mostly sunny. Very hot. Highs 111 to 116. .THURSDAY NIGHT...Mostly clear. Lows 86 to 91. .FRIDAY...Partly cloudy in the morning...becoming mostly sunny. Very hot. Highs 112 to 116. $$