| National Weather Service Forecast for:
Grass Valley CA Issued by: National Weather Service Sacramento, CA |
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| Updated: 7:41 pm PDT Jun 18, 2026 | ||||||||||||||||||
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| Tonight |
Partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening. |
| Juneteenth |
A slight chance of rain between 10am and 11am. Sunny, with a high near 77. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 20%. |
| Friday Night |
Clear, with a low around 53. Southwest wind around 5 mph becoming calm in the evening. |
| Saturday |
Sunny, with a high near 79. Calm wind becoming west southwest around 5 mph in the afternoon. |
| Saturday Night |
Clear, with a low around 54. Light and variable wind. |
| Sunday |
Sunny, with a high near 83. |
| Sunday Night |
Clear, with a low around 59. |
| Monday |
Sunny, with a high near 87. |
| Monday Night |
Clear, with a low around 60. |
| Tuesday |
Sunny, with a high near 89. |
| Tuesday Night |
Clear, with a low around 60. |
| Wednesday |
Sunny, with a high near 90. |
| Wednesday Night |
Clear, with a low around 60. |
| Thursday |
Sunny, with a high near 89. |
Forecast from NOAA-NWS for Grass Valley CA.
