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Spider Lake Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY |
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| Hazy | Mostly Clear | Mostly Sunny | Clearing | Mostly Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Clear | Clear | Sunny |
| Hi: 73°FHi: 23°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 48°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 48°FLo: 9°C | Hi: 58°FHi: 14°C | Hi: 60°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 60°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C Lo: 46°FLo: 8°C | Hi: 65°FHi: 18°C Lo: 46°FLo: 8°C | Hi: 71°FHi: 22°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 AM PDT Thu Sep 24 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.
Discussion
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...Today-Thursday (9/23-9/24)... Cl...