Washington, CA Weather Forecast
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Washington Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Patchy Fog | Clear | Sunny | Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Clear | Clear |
| Hi: 72°FHi: 22°C | Lo: 52°FLo: 11°C | Hi: 82°FHi: 28°C | Lo: 59°FLo: 15°C | Hi: 86°FHi: 30°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 86°FHi: 30°C Lo: 60°FLo: 16°C | Hi: 86°FHi: 30°C Lo: 60°FLo: 16°C | Hi: 87°FHi: 31°C Lo: 59°FLo: 15°C | Hi: 87°FHi: 31°C Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Thu Sep 17 2026 

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Instant definitions for any meteorological term.
Issued: 1215 PM PDT Wed Sep 16 2026
Key Messages
- Cooler weather, breezy onshore winds, and increased humidity through Thursday
- Isolated thunderstorm chances through Thursday, mainly across Coast Range, Shasta County, and southern Cascades
- Warming and drying conditions late week and over the weekend with near normal temperatures
Discussion
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Today-Thursday: Current GOES-West visible satellite imagery shows some cumulus clouds developing over the mountains mainly north of Interstate 80 so far on this Wednesday afternoon. The few low c...
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