Zone Forecast Product
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
979 FPUS56 KSGX 182009 ZFPSGX Zone Forecast Product for Extreme Southwest California National Weather Service San Diego CA 109 PM PDT Mon Aug 18 2025 CAZ552-191000- Orange County Coastal Areas- Including the cities of Huntington Beach, Costa Mesa, Newport Beach, Laguna Beach, and San Clemente 109 PM PDT Mon Aug 18 2025 .TONIGHT...Partly cloudy this evening...becoming mostly cloudy. Lows 62 to 66. Areas of winds southwest 10 mph this evening becoming light. .TUESDAY...Mostly cloudy in the morning...becoming mostly sunny. Highs 74 to 77 at the beaches to 79 to 84 farther inland and near higher coastal terrain. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 63 to 67. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light. .WEDNESDAY...Mostly cloudy in the morning...becoming partly cloudy. Highs 75 to 78 at the beaches to 80 to 85 farther inland and near higher coastal terrain. Light winds becoming west 10 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Lows 65 to 68. Areas of winds southwest 10 mph in the evening becoming light. .THURSDAY...Mostly cloudy with patchy fog in the morning... becoming partly cloudy. Highs around 79 at the beaches to 82 to 87 farther inland and near higher coastal terrain. .THURSDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows around 68. .FRIDAY...Mostly cloudy with patchy fog in the morning...becoming partly cloudy. Highs around 81 at the beaches to 83 to 88 farther inland and near higher coastal terrain. .FRIDAY NIGHT...Partly cloudy. Patchy fog overnight. Lows around 70. .SATURDAY...Patchy fog in the morning. Partly cloudy. Highs around 80 at the beaches to 82 to 87 farther inland and near higher coastal terrain. .SATURDAY NIGHT...Mostly clear in the evening...becoming mostly cloudy overnight with patchy fog. Lows around 70. .SUNDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs around 80 at the beaches to 82 to 87 farther inland and near higher coastal terrain. .SUNDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows around 68. .MONDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 74 to 77 at the beaches to 79 to 84 farther inland and near higher coastal terrain. $$ CAZ554-191000- Orange County Inland Areas- Including the cities of Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear this evening...becoming partly cloudy. Patchy fog overnight. Lows 59 to 66. Areas of winds south to 10 mph this evening becoming light. .TUESDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 85 towards the coast to 86 farther inland. Light winds becoming west 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 62 to 67. Areas of winds west to 10 mph in the evening becoming light. .WEDNESDAY...Partly cloudy with patchy fog in the morning... becoming mostly sunny. Highs 84 to 88 towards the coast to 92 farther inland. Light winds becoming west 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 65 to 69. Areas of winds southwest to 10 mph in the evening becoming light. .THURSDAY...Mostly cloudy with patchy fog in the morning... becoming mostly sunny. Highs 87 to 92 towards the coast to 95 to 99 farther inland. .THURSDAY NIGHT...Clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 67 to 71. .FRIDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 86 to 91 towards the coast to 94 to 98 farther inland. .FRIDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 67 to 71. .SATURDAY...Partly cloudy with patchy fog in the morning... becoming mostly sunny. Highs 85 to 89 towards the coast to 91 to 94 farther inland. .SATURDAY NIGHT...Mostly clear in the evening...becoming mostly cloudy overnight with patchy fog. Lows around 70. .SUNDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 83 to 87 towards the coast to 90 to 93 farther inland. .SUNDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows around 70. .MONDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 81 to 84 towards the coast to 86 to 89 farther inland. $$ CAZ043-191000- San Diego County Coastal Areas- Including the cities of Oceanside, Vista, Carlsbad, Encinitas, Chula Vista, National City, and San Diego 109 PM PDT Mon Aug 18 2025 .TONIGHT...Partly cloudy this evening...becoming mostly cloudy. Patchy fog overnight. Lows 60 to 64. Light winds. .TUESDAY...Mostly cloudy with patchy fog in the morning... becoming mostly sunny. Highs 73 to 78 near the coast to 78 to 83 inland. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 61 to 66. Areas of winds west to 10 mph in the evening becoming light. .WEDNESDAY...Cloudy in the morning...becoming partly cloudy. Patchy fog in the morning. Highs 73 to 78 near the coast to 79 to 83 inland. Areas of winds west to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. Patchy fog overnight. Lows 64 to 67. Light winds. .THURSDAY...Mostly cloudy with patchy fog in the morning... becoming partly cloudy. Highs 76 to 81 near the coast to 81 to 86 inland. .THURSDAY NIGHT...Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 66 to 69. .FRIDAY...Mostly cloudy with patchy fog in the morning...becoming partly cloudy. Highs 78 to 83 near the coast to 83 to 88 inland. .FRIDAY NIGHT...Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 66 to 70. .SATURDAY...Patchy fog in the morning. Partly cloudy. Highs 77 to 82 near the coast to 82 to 87 inland. .SATURDAY NIGHT...Partly cloudy in the evening...becoming cloudy overnight with patchy fog. Lows 66 to 70. .SUNDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 75 to 80 near the coast to 82 to 86 inland. .SUNDAY NIGHT...Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 65 to 69. .MONDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 73 to 78 near the coast to 79 to 83 inland. $$ CAZ050-191000- San Diego County Valleys- Including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Partly cloudy. Patchy fog overnight. Lows 58 to 63. Areas of winds west to 10 mph this evening becoming light. .TUESDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 86 in the western valleys to 88 to 93 near the foothills. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 61 to 65. Areas of winds west to 10 mph in the evening becoming light. .WEDNESDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 83 to 88 in the western valleys to 92 to 97 near the foothills. Light winds becoming west 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 64 to 69. Light winds. .THURSDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 85 to 90 in the western valleys to 95 to 100 near the foothills. .THURSDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 66 to 71. .FRIDAY...Patchy fog in the morning. Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 88 to 93 in the western valleys to 96 to 101 near the foothills. .FRIDAY NIGHT...Partly cloudy. Patchy fog overnight. Lows 67 to 71. .SATURDAY...Patchy fog in the morning. Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 86 to 91 in the western valleys to 94 to 99 near the foothills. .SATURDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 67 to 71. .SUNDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 86 to 90 in the western valleys to 92 to 97 near the foothills. .SUNDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 66 to 69. .MONDAY...Patchy fog in the morning. Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 82 to 86 in the western valleys to 88 to 93 near the foothills. $$ CAZ048-191000- San Bernardino and Riverside County Valleys-The Inland Empire- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, and Corona 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 59 to 64. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light. .TUESDAY...Mostly sunny. Highs 91 to 97. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 61 to 67. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light. .WEDNESDAY...Mostly sunny. Highs 96 to 103. Light winds becoming west 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 66 to 72. Areas of winds west to 10 mph in the evening becoming light. .THURSDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 99 to 106. .THURSDAY NIGHT...Mostly clear. Lows 68 to 74. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs 99 to 106. .FRIDAY NIGHT...Partly cloudy in the evening...becoming mostly clear. Lows 68 to 73. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 95 to 103. .SATURDAY NIGHT...Partly cloudy. Lows 69 to 74. .SUNDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 96 to 104. .SUNDAY NIGHT...Partly cloudy in the evening...becoming mostly clear. Lows 67 to 72. .MONDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 91 to 99. $$ CAZ057-191000- Santa Ana Mountains and Foothills- 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 57 to 65. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light. .TUESDAY...Mostly sunny. Highs 83 to 93. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 60 to 67. Areas of winds northwest to 10 mph with gusts to 25 mph in the evening becoming light. .WEDNESDAY...Mostly sunny. Warmer. Highs 90 to 100. Light winds becoming west 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 64 to 72. Areas of winds southwest to 10 mph in the evening becoming light. .THURSDAY...Mostly sunny. Highs 91 to 101. .THURSDAY NIGHT...Mostly clear. Lows 65 to 75. .FRIDAY...Mostly sunny. Highs 92 to 102. .FRIDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 65 to 75. .SATURDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 91 to 101. .SATURDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 67 to 74. .SUNDAY...Mostly sunny. Highs 89 to 99. .SUNDAY NIGHT...Mostly clear in the evening...becoming partly cloudy. Lows 65 to 72. .MONDAY...Mostly sunny. Highs 85 to 95. $$ CAZ055-191000- San Bernardino County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 48 to 58 above 6000 feet to 56 to 66 below 6000 feet. Areas of winds south 10 to 15 mph. Gusts to 25 mph this evening. .TUESDAY...Mostly sunny in the morning...becoming partly cloudy. Highs 75 to 85 above 6000 feet to 81 to 90 below 6000 feet. Areas of winds south 10 to 15 mph. Gusts to 30 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy in the evening...becoming mostly clear. Lows 51 to 61 above 6000 feet to 59 to 69 below 6000 feet. Areas of winds south 10 to 15 mph with gusts to 30 mph...becoming to 10 mph overnight. .WEDNESDAY...Mostly sunny in the morning...becoming partly cloudy. Highs 79 to 89 above 6000 feet to 87 to 96 below 6000 feet. Areas of winds east to 10 mph becoming southwest 10 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy in the evening...becoming mostly clear. Lows 55 to 65 above 6000 feet to 63 to 73 below 6000 feet. Areas of winds southwest to 10 mph in the evening becoming light. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 81 to 91 above 6000 feet to 89 to 98 below 6000 feet. .THURSDAY NIGHT...Mostly clear. Lows 61 to 71. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 81 to 91 above 6000 feet to 89 to 99 below 6000 feet. .FRIDAY NIGHT...Partly cloudy. A chance of showers and a slight chance of thunderstorms in the evening. Lows 60 to 70. .SATURDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 77 to 87 above 6000 feet to 85 to 95 below 6000 feet. .SATURDAY NIGHT...Partly cloudy. A chance of showers and a slight chance of thunderstorms in the evening. Lows 60 to 70. .SUNDAY...Partly cloudy. A chance of showers and a slight chance of thunderstorms in the afternoon. Highs 77 to 87 above 6000 feet to 86 to 95 below 6000 feet. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear overnight. Lows 58 to 68. .MONDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 74 to 84 above 6000 feet to 82 to 91 below 6000 feet. $$ CAZ056-191000- Riverside County Mountains- Including the city of Idyllwild-Pine Cove 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 53 to 63. Areas of winds west 10 mph. .TUESDAY...Sunny in the morning...becoming partly cloudy. Highs 85 to 95. Areas of winds south to 10 mph becoming west with gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 56 to 66. Areas of winds northwest 10 to 15 mph with gusts to 25 mph becoming west overnight. .WEDNESDAY...Mostly sunny in the morning...becoming partly cloudy. Highs 88 to 98. Areas of winds northwest 10 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening...becoming mostly clear. Lows 61 to 71. Light winds. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 90 to 100. .THURSDAY NIGHT...Mostly clear. Lows 62 to 72. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 90 to 100. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 61 to 71. .SATURDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 86 to 96. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 61 to 71. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 86 to 96. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 59 to 69. .MONDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 83 to 93. $$ CAZ058-191000- San Diego County Mountains- Including the cities of Julian and Pine Valley 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 57 to 67. Areas of winds west 10 to 15 mph. Gusts to 25 mph this evening. .TUESDAY...Mostly sunny. Highs 86 to 95. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 60 to 70. Areas of winds west 10 to 15 mph. Gusts to 25 mph in the evening. .WEDNESDAY...Mostly sunny in the morning...becoming partly cloudy. Highs 91 to 99. Areas of winds west to 10 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening...becoming mostly clear. Lows 65 to 75. Areas of winds west to 10 mph. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 92 to 101. .THURSDAY NIGHT...Mostly clear. Lows 66 to 76. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 92 to 101. .FRIDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear overnight. Lows 65 to 75. .SATURDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 89 to 98. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear overnight. Lows 65 to 75. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 89 to 97. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 64 to 74. .MONDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 85 to 94. $$ CAZ060-191000- Apple and Lucerne Valleys- Including the cities of Victorville, Hesperia, Apple Valley, and Lucerne Valley 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 60 to 70. Areas of winds west 10 to 20 mph. Gusts to 30 mph this evening. .TUESDAY...Mostly sunny. Highs 96 to 103. Areas of winds west to 10 mph...becoming south 10 to 20 mph with gusts to 30 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 62 to 72. Areas of winds west 10 to 15 mph. Gusts to 30 mph...becoming 25 mph overnight. .WEDNESDAY...Mostly sunny. Highs 98 to 105. Light winds becoming west 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 67 to 77. Areas of winds southwest 10 mph. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 102 to 108. .THURSDAY NIGHT...Mostly clear. Lows 71 to 79. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 101 to 107. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 72 to 80. .SATURDAY...Partly cloudy. A chance of showers and a slight chance of thunderstorms in the afternoon. Highs 99 to 105. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 72 to 79. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 99 to 105. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 70 to 77. .MONDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 96 to 102. $$ CAZ065-191000- San Gorgonio Pass near Banning- 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows around 71 through the pass to 80 to 83 in the northern Coachella Valley. Areas of winds west 15 to 25 mph. Gusts to 40 mph...becoming 35 mph overnight. .TUESDAY...Mostly sunny. Highs around 100 through the pass to 104 to 108 in the northern Coachella Valley. Areas of winds west 10 to 20 mph with gusts to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows around 75 through the pass to 83 to 86 in the northern Coachella Valley. Areas of winds west 20 to 30 mph. Gusts to 45 mph...becoming 40 mph overnight. .WEDNESDAY...Mostly sunny. Highs around 103 through the pass to 110 in the northern Coachella Valley. Areas of winds northwest 10 to 15 mph with gusts to 30 mph becoming south with gusts to 25 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows around 79 through the pass to 88 in the northern Coachella Valley. Areas of winds northwest 10 to 20 mph with gusts to 30 mph. .THURSDAY...Mostly sunny in the morning...becoming partly cloudy. Hot. Highs around 105 through the pass to 109 to 112 in the northern Coachella Valley. .THURSDAY NIGHT...Mostly clear. Lows 80 to 90. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Hot. Highs around 105 through the pass to 109 to 112 in the northern Coachella Valley. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 79 to 89. .SATURDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs around 103 through the pass to 106 to 110 in the northern Coachella Valley. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 79 to 89. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs around 103 through the pass to 110 in the northern Coachella Valley. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 77 to 87. .MONDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs around 100 through the pass to 104 to 107 in the northern Coachella Valley. $$ CAZ061-191000- Coachella Valley- Including the cities of Indio, Palm Springs, Cathedral City, Palm Desert, Palm Desert Country, La Quinta, and Coachella 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 76 to 82. Areas of winds northwest 10 mph. .TUESDAY...Mostly sunny. Hot. Highs around 110. Light winds becoming southeast 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 80 to 85. Areas of winds northwest 10 to 15 mph. Gusts to 25 mph in the evening. .WEDNESDAY...Mostly sunny. Hot. Highs 109 to 112. Light winds becoming southeast 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 82 to 88. Areas of winds northwest 10 mph. .THURSDAY...Mostly sunny in the morning...becoming partly cloudy. Hot. Highs 109 to 113. .THURSDAY NIGHT...Mostly clear. Lows 84 to 89. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Hot. Highs around 112. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 83 to 88. .SATURDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs around 109. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 82 to 88. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Hot. Highs 109 to 112. .SUNDAY NIGHT...Partly cloudy. Lows 80 to 86. .MONDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs around 106. $$ CAZ062-191000- San Diego County Deserts- Including the city of Borrego Springs 109 PM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... .TONIGHT...Mostly clear. Lows 76 to 84. Areas of winds west 10 to 15 mph. Gusts to 30 mph...becoming 25 mph overnight. .TUESDAY...Mostly sunny. Hot. Highs 106 to 110. Light winds becoming east 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 80 to 88. Areas of winds west 10 to 20 mph. Gusts to 30 mph...becoming 25 mph overnight. .WEDNESDAY...Mostly sunny. Hot. Highs 108 to 112. Areas of winds west 10 mph becoming southeast in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 91. Areas of winds west 10 mph. .THURSDAY...Mostly sunny in the morning...becoming partly cloudy. Hot. Highs 110 to 113. .THURSDAY NIGHT...Mostly clear. Lows 84 to 92. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Hot. Highs 111 to 114. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 83 to 91. .SATURDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Hot. Highs around 110. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear overnight. Lows 83 to 92. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Hot. Highs 109 to 113. .SUNDAY NIGHT...Partly cloudy. Lows 80 to 90. .MONDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 104 to 108. $$