Fri Feb 21 03:43:18 PM EST 2025 San Diego County Valleys- Including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway 1243 PM PST Fri Feb 21 2025 .TONIGHT...Mostly clear. Lows 42 to 50 in wind sheltered areas to 46 to 52 in warmer locations. Light winds becoming east to 10 mph overnight. .SATURDAY...Mostly sunny. Highs 80 to 85. Light winds becoming west 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 43 to 51 in wind sheltered areas to 47 to 54 in warmer locations. Light winds. .SUNDAY...Mostly sunny. Highs 78 to 83. Light winds becoming west 10 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 43 to 53 in wind sheltered areas to 50 to 56 in warmer locations. Light winds. .MONDAY...Mostly sunny. Highs 79 to 84. .MONDAY NIGHT...Mostly clear. Lows 45 to 55. .TUESDAY...Mostly sunny. Highs 79 to 82 in the western valleys to 80 to 85 near the foothills. .TUESDAY NIGHT...Partly cloudy. Lows 48 to 58. .WEDNESDAY...Partly cloudy. Highs 84 to 89. .WEDNESDAY NIGHT...Partly cloudy. Lows 49 to 59. .THURSDAY...Partly cloudy. Highs 81 to 86. .THURSDAY NIGHT...Partly cloudy. Colder. Lows 43 to 53. .FRIDAY...Partly cloudy with a slight chance of showers. Highs 71 to 76.