Grass Valley Lake, CA 7-Day Weather Forecast
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Grass Valley Lake Weather Forecast


Grass Valley Lake, CA Weather Forecast Date: 1129 AM PDT Tue Sep 01 2026
Weather forecast for Grass Valley Lake, CA
| Tonight |
Tonight... Mostly clear. Cooler. Lows 41 to 51 above 6000 feet to 50 to 60 below 6000 feet. Areas of winds south 15 to 25 mph. Gusts to 45 mph...Becoming 40 mph overnight. |
| Wed |
Wednesday... Sunny. Highs 65 to 75 above 6000 feet to 72 to 81 below 6000 feet. Areas of winds south 10 to 20 mph with gusts to 35 mph. |
| Thu |
Thursday... Mostly sunny. Highs 65 to 75 above 6000 feet to 71 to 81 below 6000 feet. Areas of winds southwest 10 to 15 mph. Gusts to 30 mph in the afternoon. |
| Fri Lo: 52°F Lo: 11°C |
Friday... Mostly sunny. Highs 65 to 75 above 6000 feet to 72 to 82 below 6000 feet. |
| Sat Lo: 55°F Lo: 13°C |
Saturday... Partly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs 63 to 73 above 6000 feet to 72 to 81 below 6000 feet. |
| Sun Lo: 56°F Lo: 13°C |
Sunday... Partly cloudy in the morning...Becoming mostly cloudy. A chance of showers. Highs 63 to 73 above 6000 feet to 72 to 81 below 6000 feet. |
| Labor Day Lo: 56°F Lo: 13°C |
Labor Day... Partly cloudy with a chance of showers. Highs 65 to 75 above 6000 feet to 74 to 83 below 6000 feet. |
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