Expires:202512100015;;270169 FPUS56 KSGX 091003 ZFPSGX Zone Forecast Product for Extreme Southwest California National Weather Service San Diego CA 203 AM PST Tue Dec 9 2025 CAZ050-100015- San Diego County Valleys- Including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway 203 AM PST Tue Dec 9 2025 .TODAY...Sunny. Highs 82 to 86 in the western valleys to 75 to 80 near the foothills. Areas of winds east 10 to 15 mph with gusts to 25 mph becoming west this afternoon. .TONIGHT...Clear. Lows 40 to 50. Areas of winds east 10 mph. .WEDNESDAY...Mostly sunny. Temperature falling into the in the upper 60s in the afternoon. Highs 80 to 85. Areas of winds east to 10 mph becoming west in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 40 to 50. Areas of winds east to 10 mph. .THURSDAY...Mostly sunny. Highs 78 to 83. Light winds becoming west 10 mph in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 46 to 51. .FRIDAY...Sunny. Highs 77 to 82. .FRIDAY NIGHT...Clear in the evening...becoming partly cloudy. Lows 44 to 50. .SATURDAY...Partly cloudy in the morning...becoming mostly sunny. Highs 73 to 78. .SATURDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 47 to 52. .SUNDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 70 to 75. .SUNDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 47 to 51. .MONDAY...Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 70 to 75. $$