| NWS Forecast for: Grass Valley CA Issued by: National Weather Service Sacramento, CA Last Update: 11:31 pm PDT Jun 17, 2026 | |
| Overnight: Mostly clear, with a low around 16. Calm wind. Thursday: Sunny, with a high near 28. Calm wind becoming west southwest 5 to 10 km/h in the morning. Thursday Night: A 10 percent chance of rain after 5am. Mostly clear, with a low around 14. South wind 5 to 10 km/h becoming calm in the evening. Juneteenth: Sunny, with a high near 25. Calm wind becoming southwest 5 to 10 km/h in the afternoon. Friday Night: Clear, with a low around 11. Southwest wind 5 to 10 km/h becoming calm in the evening. Saturday: Sunny, with a high near 26. Saturday Night: Clear, with a low around 13. Sunday: Sunny, with a high near 28. Sunday Night: Clear, with a low around 15. Monday: Sunny, with a high near 30. Monday Night: Clear, with a low around 17. Tuesday: Sunny, with a high near 32. Tuesday Night: Clear, with a low around 17. Wednesday: Sunny, with a high near 32. | |
| Grass Valley CA 39.23°N 121.08°W (Elev. 2598 m) | |
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