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Colusa Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  | | | |  | |  |  | | |
| Patchy Fog | Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Mostly Clear | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 72°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 76°FHi: 24°C | Lo: 47°FLo: 8°C | Hi: 72°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°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 | Hi: 64°FHi: 18°C | Lo: 48°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 101 PM PST Mon Nov 09 2026 
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Issued: 218 AM PST Mon Nov 9 2026
Key Messages
- Dry weather, above normal temperatures, and periodically breezy north to east winds Tuesday through Friday morning
- Shift toward active weather pattern late week into early the next week, with the potential for heavy rain and heavy mountain snow, and gusty onshore winds; Low confidence persists in the timing and amount of potential precipitation
Discussion
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Today-Thursday:
An approaching weak shortwave is bringing a band of high-level clouds across the northern portion of the forecast ...