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Summit City Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  | | |  | | |  | | | | |
| Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Clear |
| Lo: 60°FLo: 16°C | Hi: 92°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 90°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 56°FLo: 13°C | Hi: 80°FHi: 27°C Lo: 56°FLo: 13°C | Hi: 80°FHi: 27°C Lo: 56°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 53°FLo: 12°C | Hi: 81°FHi: 27°C Lo: 53°FLo: 12°C | Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 PM PDT Tue Sep 22 2026 
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Issued: 112 PM PDT Tue Sep 22 2026
Key Messages
- Periodically breezy winds and warming temperatures, peaking on Thursday with areas of Moderate HeatRisk in the Valley.
- Isolated shower and storm chances around Shasta county Thursday night into Friday.
- Potential for unsettled weather and increased onshore winds over the weekend and into early next week.
Discussion
...
...Today through Thursday...
Satellite and radar across northern California are clear this afternoon, with temperatures reaching into the 80s this afternoon. Periodic breez...