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Lake Alpine Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY |
 | |  |  |  | | | | | | | |
| Hazy | Hazy | Clearing | Sunny | Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 50°FLo: 10°C | Hi: 68°FHi: 20°C | Lo: 48°FLo: 9°C | Hi: 70°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 73°FHi: 23°C | Lo: 51°FLo: 11°C | Hi: 72°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 72°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C Lo: 48°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 48°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 48°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 800 PM PDT Sun Sep 20 2026 
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Issued: 1216 PM PDT Sun Sep 20 2026
Key Messages
- Periodically breezy winds and warming temperatures this week, with areas of Moderate HeatRisk in the Valley on Thursday.
- Isolated mountain shower and thunderstorm chances (less than 10%) in the Sierra south of Highway 50 on Monday.
- Potential for unsettled weather and increased onshore winds Friday into the weekend as a system passes to our north.
Discussion
... Today-Monday: Scattered high clouds are being observed over portions of Northern California this afternoon as a deepening offs...