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Gridley High School Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | WEDNESDAY |
 |  |  |  | | | | | | | |
| Partly Cloudy | Mostly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 94°FHi: 34°C | Lo: 66°FLo: 19°C | Hi: 93°FHi: 34°C | Lo: 64°FLo: 18°C | Hi: 92°FHi: 33°C | Lo: 63°FLo: 17°C | Hi: 93°FHi: 34°C | Hi: 93°FHi: 34°C Lo: 63°FLo: 17°C | Hi: 93°FHi: 34°C Lo: 63°FLo: 17°C | Hi: 93°FHi: 34°C Lo: 63°FLo: 17°C | Hi: 93°FHi: 34°C Lo: 63°FLo: 17°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Thu Aug 20 2026 
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Gridley High School Forecast Discussion
Issued: 1251 PM PDT Wed Aug 19 2026
Key Messages
- Elevated Fire Weather Conditions Friday through Saturday within the Burney Basin/NE Foothills due to low RH and breezy westerly winds.
- Dry and with seasonable high temperatures through the week and into the weekend.
Discussion
... Mostly clear skies prevail across interior NorCal this afternoon with high temperatures beginning to climb into the low to mid 80s. Upper level high pressure has retrograded slightly this afternoon, which will help high temperatu...