Weather WorldUmpa Lake, CA Weather Forecast
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Umpa Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY |
 |  |  |  |  | |  |  | | | |
| Mostly Cloudy | Chance of Rain | Chance of T-Storm | Chance of T-Storm | Rain and Snow | Rain and Snow | Mostly Sunny | Clear | Clear | Mostly Clear | Mostly Clear |
| Hi: 58°FHi: 14°C | Lo: 42°FLo: 6°C | Hi: 55°FHi: 13°C | Lo: 39°FLo: 4°C | Hi: 46°FHi: 8°C | Lo: 36°FLo: 2°C | Hi: 54°FHi: 12°C | Hi: 56°FHi: 13°C Lo: 36°FLo: 2°C | Hi: 56°FHi: 13°C Lo: 36°FLo: 2°C | Hi: 58°FHi: 14°C Lo: 37°FLo: 3°C | Hi: 58°FHi: 14°C Lo: 37°FLo: 3°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 AM PDT Tue Oct 20 2026 
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Issued: 154 PM PDT Mon Oct 19 2026
Key Messages
- Chance for a shower over the Coastal Range this afternoon/evening.
- Widespread precipitation Tuesday through Thursday, with below normal temperatures, thunderstorm chances, and high elevation snow showers.
- Dry conditions return end of the week and into the weekend, followed by the potential for further unsettled weather.
Discussion
...
...Today through Thursday...
Current satellite and radar has an area of light showers over the Coastal Range this afternoon as a trough sits off the coast....