Wed Oct 2 03:35:19 PM EDT 2024 San Diego County Valleys- Including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway 1235 PM PDT Wed Oct 2 2024 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY... .TONIGHT...Mostly clear. Patchy fog overnight. Local visibility one quarter mile or less at times overnight. Lows 61 to 71. Light winds. .THURSDAY...Mostly sunny. Highs 85 to 90 in the western valleys to 94 to 99 near the foothills. Light winds becoming west 10 mph in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 58 to 66 in wind sheltered areas to 63 to 68 in warmer locations. Light winds. .FRIDAY...Patchy fog in the morning. Mostly sunny. Local visibility one quarter mile or less at times in the morning. Highs 84 to 89 in the western valleys to 93 to 98 near the foothills. Light winds becoming west 10 mph in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 58 to 66 in wind sheltered areas to 63 to 68 in warmer locations. Light winds. .SATURDAY...Mostly sunny. Hot. Highs 89 to 93 in the western valleys to 96 to 101 near the foothills. .SATURDAY NIGHT...Mostly clear. Patchy fog overnight. Local visibility one quarter mile or less at times overnight. Lows 59 to 69. .SUNDAY...Patchy fog in the morning. Mostly sunny. Local visibility one quarter mile or less at times in the morning. Hot. Highs 91 to 96 in the western valleys to 96 to 101 near the foothills. .SUNDAY NIGHT...Mostly clear. Lows 59 to 69. .MONDAY...Mostly sunny. Hot. Highs 91 to 96 in the western valleys to 95 to 100 near the foothills. .MONDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Local visibility one quarter mile or less at times overnight. Lows 57 to 67. .TUESDAY...Partly cloudy with patchy fog in the morning... becoming mostly sunny. Highs 84 to 89 in the western valleys to 89 to 94 near the foothills. .TUESDAY NIGHT...Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 53 to 62. .WEDNESDAY...Partly cloudy with patchy fog in the morning... becoming mostly sunny. Highs 79 to 84 in the western valleys to 83 to 88 near the foothills.