Osma Lake, CA Weather Forecast
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Osma Lake Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Rain and Snow | Rain and Snow | Chance of Snow |
| Lo: 34°FLo: 1°C | Hi: 50°FHi: 10°C | Lo: 31°FLo: -1°C | Hi: 54°FHi: 12°C | Lo: 35°FLo: 2°C | Hi: 52°FHi: 11°C | Lo: 34°FLo: 1°C | Hi: 48°FHi: 9°C Lo: 34°FLo: 1°C | Hi: 48°FHi: 9°C Lo: 34°FLo: 1°C | Hi: 43°FHi: 6°C Lo: 32°FLo: 0°C | Hi: 43°FHi: 6°C Lo: 32°FLo: 0°C | Hi: 45°FHi: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 PM PDT Mon Oct 26 2026 

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Issued: 1239 PM PDT Mon Oct 26 2026
Key Messages
- Cool and dry weather through Friday
- Breezy southwest winds today, strongest over the higher elevations of the southern Cascades and northern Sierra
- Pattern change to unsettled weather this weekend
.DISCUSSION...
...Today through Friday... Latest GOES-west visible satellite shows some low to mid level clouds over the mountains this afternoon, especially for Shasta County and the Coast Range. Temperatures are currently trending approximately 3 to 8 degrees cooler than this time yesterday...
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