Grass Lake, CA Weather Forecast
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Grass Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | WEDNESDAY |
| Partly Cloudy | Partly Cloudy | Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Clear | Clear | Clear |
| Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 52°FLo: 11°C | Hi: 86°FHi: 30°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 37°FLo: 3°C | Hi: 67°FHi: 19°C Lo: 41°FLo: 5°C | Hi: 67°FHi: 19°C Lo: 41°FLo: 5°C | Hi: 73°FHi: 23°C Lo: 44°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 44°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 44°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 232 PM PDT Wed Sep 09 2026 

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Issued: 138 PM PDT Wed Sep 9 2026
Key Messages
- Isolated shower and very isolated thunderstorm chances, mainly for portions of western Nevada and the Sierra, on Thursday afternoon.
- Gusty to strong winds return Friday afternoon through Sunday morning with impacts to fire weather, aviation, and recreation with winds peaking on Saturday.
- A significant cooling trend is expected for Friday through early next week.
Discussion
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Generally fair weather along with warm temperatures continue through Thursday. Afternoon temperatures in valley...
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