Weather WorldGrass Valley Lake, CA 14 Day Weather
Quick Weather Clicks
Settings
Sun & Moon
Grass Valley Lake, CA Weather Forecast
Grass Valley Lake, CA Weather Forecast Dated: 1136 PM Mon Aug 17 2026 (Grass Valley Lake Time)
Mon, 17th Lo: 18°C65°F Hi: 29°C85°F |
Sunny Monday, temperatures as high as 85°F29°C, low temperature around 65°F18°C, chance of rain 4%, wind out of the S 10 mph16 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 32%. |
Tue, 18th Lo: 19°C67°F Hi: 30°C86°F |
Overcast Tuesday, temperatures as high as 86°F30°C, low temperature around 67°F19°C, chance of rain 5%, wind out of the S 11 mph18 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 27%. |
| Wed, 19th Lo: 20°C67°F Hi: 32°C90°F |
Sunny Wednesday, temperatures as high as 90°F32°C, low temperature around 67°F20°C, chance of rain 1%, wind out of the S 11 mph18 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 26%. |
| Thu, 20th Lo: 20°C69°F Hi: 31°C88°F |
Sunny Thursday, temperatures as high as 88°F31°C, low temperature around 69°F20°C, chance of rain 2%, wind out of the S 10 mph16 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 31%. |
| Fri, 21st Lo: 20°C67°F Hi: 30°C87°F |
Overcast Friday, temperatures as high as 87°F30°C, low temperature around 67°F20°C, chance of rain 6%, wind out of the S 9 mph14 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 33%. |
| Sat, 22nd Lo: 20°C68°F Hi: 30°C86°F |
Overcast Saturday, temperatures as high as 86°F30°C, low temperature around 68°F20°C, chance of rain 3%, wind out of the S 10 mph15 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 33%. |
Sun, 23rd Lo: 20°C69°F Hi: 30°C86°F |
Chance of showers Sunday, temperatures as high as 86°F30°C, low temperature around 69°F20°C, chance of rain 57%, wind out of the S 13 mph20 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 33%. |
| Mon, 24th Lo: 20°C68°F Hi: 29°C84°F |
Chance of showers Monday, temperatures as high as 84°F29°C, low temperature around 68°F20°C, chance of rain 57%, wind out of the SSE 10 mph15 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 40%. |
| Tue, 25th Lo: 20°C68°F Hi: 29°C84°F |
Overcast Tuesday, temperatures as high as 84°F29°C, low temperature around 68°F20°C, chance of rain 58%, wind out of the SSE 7 mph12 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 41%. |
| Wed, 26th Lo: 21°C70°F Hi: 30°C85°F |
Sunny Wednesday, temperatures as high as 85°F30°C, low temperature around 70°F21°C, chance of rain 6%, wind out of the S 10 mph17 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 39%. |
| Thu, 27th Lo: 19°C66°F Hi: 29°C85°F |
Sunny Thursday, temperatures as high as 85°F29°C, low temperature around 66°F19°C, chance of rain 1%, wind out of the S 13 mph21 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 37%. |
| Fri, 28th Lo: 17°C63°F Hi: 28°C82°F |
Sunny Friday, temperatures as high as 82°F28°C, low temperature around 63°F17°C, wind out of the S 11 mph18 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 24%. |
| Sat, 29th Lo: 16°C61°F Hi: 27°C81°F |
Sunny Saturday, temperatures as high as 81°F27°C, low temperature around 61°F16°C, wind out of the S 10 mph15 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 20%. |
| Sun, 30th Lo: 16°C62°F Hi: 28°C82°F |
Sunny Sunday, temperatures as high as 82°F28°C, low temperature around 62°F16°C, wind out of the SSE 8 mph13 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 20%. |
Grass Valley Lake, CA Weather Radar Map
Use the map search tool if you want to place a location marker on the radar map...