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Hidden Valley Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 | |  |  | | | | | | | | |
| Patchy Fog | Patchy Fog | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear |
| Hi: 87°FHi: 31°C | Lo: 68°FLo: 20°C | Hi: 100°FHi: 38°C | Lo: 75°FLo: 24°C | Hi: 101°FHi: 38°C | Lo: 76°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 74°FLo: 23°C | Hi: 96°FHi: 36°C | Lo: 73°FLo: 23°C | Hi: 95°FHi: 35°C | Lo: 72°FLo: 22°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1230 AM PDT Thu Oct 01 2026 
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Issued: 223 AM PDT Thu Oct 1 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
.SHORT TERM (Today through Saturday)... High pressure aloft will strengthen across southern California through the weekend with periods of easterly offshore flow for Friday through Sunday, strongest on Friday and Saturday with east winds along and below the coastal slopes of the mountains in Riverside and San Diego Counties...