Spring Valley Lake, CA Weather Forecast
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Spring Valley Lake Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
| Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Chance of Showers | Chance of Showers | Showers Likely | Chance of Showers | Mostly Sunny |
| Lo: 53°FLo: 12°C | Hi: 77°FHi: 25°C | Lo: 54°FLo: 12°C | Hi: 80°FHi: 27°C | Lo: 54°FLo: 12°C | Hi: 78°FHi: 26°C | Lo: 53°FLo: 12°C | Hi: 74°FHi: 23°C | Lo: 51°FLo: 11°C | Hi: 67°FHi: 19°C | Lo: 47°FLo: 8°C | Hi: 67°FHi: 19°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1230 PM PDT Sat Oct 17 2026 

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Issued: 442 PM PDT Sat Oct 17 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
Santa Ana winds have weakened since their peak yesterday. Over the past 12 hours the top 3 wind gusts were 73 mph at Hellhole Canyon, 71 mph at Rancho Heights, and 70 mph at Freemont Canyon. Lingering gusts in the 35 to 55 mph range can be expected through the afternoon mostly in places prone to easterly winds. Winds will b...
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