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Castle School Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | |  |  | | | | |  | | |
| Mostly Clear | Clearing | Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Clear | Clear | Clear | Chance of Rain | Clear | Clear |
| Lo: 55°FLo: 13°C | Hi: 82°FHi: 28°C | Lo: 57°FLo: 14°C | Hi: 80°FHi: 27°C | Lo: 58°FLo: 14°C | Hi: 81°FHi: 27°C | Lo: 57°FLo: 14°C | Hi: 84°FHi: 29°C Lo: 58°FLo: 14°C | Hi: 84°FHi: 29°C Lo: 58°FLo: 14°C | Hi: 83°FHi: 28°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: 202 PM PDT Tue Sep 01 2026 
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Issued: 1102 AM PDT Tue Sep 1 2026
Key Messages
- Well below normal temperatures persist through this week.
- Increasing confidence in wet weather this week, starting in Shasta County this evening into Wednesday with isolated thunderstorms and scattered showers, widespread north of I-80 Thursday and Friday
- Mainly dry Saturday, with the potential for some remnant tropical system moisture Sunday through early next week, but confidence in details remains low at this point, with showers south of I-80 currently forecast.
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