Thayer Aviation, CA Weather Forecast
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| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY |
| Sunny | Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Mostly Clear | Clear | Clear |
| Hi: 90°FHi: 32°C | Lo: 57°FLo: 14°C | Hi: 90°FHi: 32°C | Lo: 58°FLo: 14°C | Hi: 83°FHi: 28°C | Lo: 56°FLo: 13°C | Hi: 82°FHi: 28°C | Lo: 54°FLo: 12°C | Hi: 78°FHi: 26°C | Lo: 53°FLo: 12°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 AM PDT Wed Sep 23 2026 

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Issued: 1230 PM PDT Wed Sep 23 2026
Key Messages
- Periods of Elevated Fire Weather Conditions for portions of interior NorCal on Thursday and again Friday PM-Saturday AM due to breezy winds and low humidities.
- Areas of Moderate HeatRisk in the Northern San Joaquin Valley on Thursday.
- Low chances for isolated showers around Shasta county Thursday night into Friday. Otherwise, primarily dry weather continues into next week.
- Periods of breezy to gusty winds Friday through early next week.
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