Expires:202512272200;;305731 FPUS56 KSGX 270929 ZFPSGX Zone Forecast Product for Extreme Southwest California National Weather Service San Diego CA 129 AM PST Sat Dec 27 2025 CAZ050-272200- San Diego County Valleys- Including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway 129 AM PST Sat Dec 27 2025 .TODAY...Partly cloudy. Highs 60 to 63 in the western valleys to 53 to 58 near the foothills. Areas of winds northwest to 10 mph. .TONIGHT...Mostly clear. Lows 34 to 41 in wind sheltered areas to 39 to 44 in warmer locations. Light winds becoming northeast 10 mph overnight. .SUNDAY...Mostly sunny. Highs 66 to 69 in the western valleys to 60 to 65 near the foothills. Areas of winds northeast 10 to 15 mph. Gusts to 25 mph...becoming 30 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 35 to 43 in wind sheltered areas to 41 to 46 in warmer locations. Areas of winds east 10 to 20 mph. Gusts to 30 mph...becoming 35 mph overnight. .MONDAY...Mostly sunny. Highs around 70 in the western valleys to 61 to 66 near the foothills. Areas of winds northeast 15 to 25 mph with gusts to 40 mph. .MONDAY NIGHT...Mostly clear. Lows 45 to 51. .TUESDAY...Partly cloudy. Highs 71 to 74 in the western valleys to 64 to 69 near the foothills. .TUESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a slight chance of showers overnight. Lows 48 to 55. .WEDNESDAY...Mostly cloudy with a chance of showers. Highs 70 to 73 in the western valleys to 65 to 70 near the foothills. .WEDNESDAY NIGHT...Cloudy. A chance of showers in the evening, then showers likely overnight. Lows 50 to 55. .NEW YEARS DAY...Showers likely. Highs 63 to 68. .THURSDAY NIGHT...Showers likely. Lows 51 to 56. .FRIDAY...Showers likely. Highs 64 to 68 in the western valleys to 60 to 65 near the foothills. $$