Gridley, CA Weather Forecast
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Gridley Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY |
| Sunny | Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Mostly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 87°FHi: 31°C | Lo: 60°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 64°FLo: 18°C | Hi: 98°FHi: 37°C | Lo: 67°FLo: 19°C | Hi: 99°FHi: 37°C | Lo: 67°FLo: 19°C | Hi: 92°FHi: 33°C | Hi: 88°FHi: 31°C Lo: 63°FLo: 17°C | Hi: 88°FHi: 31°C Lo: 63°FLo: 17°C | Hi: 88°FHi: 31°C Lo: 63°FLo: 17°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Mon Sep 07 2026 

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Issued: 146 PM PDT Sun Sep 6 2026
Key Messages
- Drying and warming trend Monday through Thursday, with areas of Moderate HeatRisk Wednesday and Thursday.
- Slight chance (15%) of thunderstorm on Wednesday over the Sierra crest, mainly south of US-50.
- Cooldown in temperatures and breezy onshore winds Friday into next weekend.
Discussion
...Upper-level trough extended from British Columbia to Northern California has begun to weaken and shift east-northeast today. Latest Visible satellite imagery depicts mid/high- level clouds streaming ...
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