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Mountain Valley Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Chance of T-Storm | Chance of Rain | Mostly Cloudy | Partly Cloudy | Sunny | Clear | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy |
| Hi: 56°FHi: 13°C | Lo: 46°FLo: 8°C | Hi: 56°FHi: 13°C | Lo: 45°FLo: 7°C | Hi: 64°FHi: 18°C | Lo: 48°FLo: 9°C | Hi: 67°FHi: 19°C Lo: 49°FLo: 9°C | Hi: 67°FHi: 19°C Lo: 49°FLo: 9°C | Hi: 67°FHi: 19°C Lo: 49°FLo: 9°C | Hi: 66°FHi: 19°C Lo: 49°FLo: 9°C | Hi: 66°FHi: 19°C Lo: 49°FLo: 9°C |
| POP: 70% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 550 AM PDT Thu Oct 22 2026 
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Issued: 430 AM PDT Thu Oct 22 2026
Key Messages
1. Temperatures will continue to cool down, and chances for precipitation last until Thursday evening. There is also a 10-20 percent chance of thunderstorms for the period.
2. There remains an 80-90% chance of an additional half inch in the Sierra Nevada with a 40-50% chance of an additional quarter inch of rainfall in the remaining portions of the forecast area until Thursday evening.
3. Snowfall is likely above 8,000 feet in elevation with a 50-60% chance of at least 4 inches of snow...