No
you don't need a jacket based on the weather in Grass Valley, CA, USA 1 second ago
88°F31°C & Clear
Wind is 9 mph15 km/h from the Southwest, gusting to 16 mph26 km/h
| July 15 | ||||
| 5pm | 88°F31°C | 10 mph16 km/h Southwest | Clear | |
| 6pm | 89°F32°C | 9 mph15 km/h Southwest | Clear | |
| 7pm | 89°F32°C | 9 mph15 km/h Southwest | Clear | |
| 8pm | 88°F31°C | 9 mph14 km/h Southwest | Clear | |
| 9pm | 87°F30°C | 8 mph13 km/h Southwest | Clear | |
| 10pm | 84°F29°C | 7 mph12 km/h South | Clear | |
| 11pm | 80°F27°C | 6 mph10 km/h South | Clear | |
| July 16 | ||||
| 12am | 74°F23°C | 5 mph8 km/h Southeast | Clear | |
| 1am | 71°F21°C | 5 mph7 km/h Southeast | Clear | |
| 2am | 68°F20°C | 5 mph7 km/h Southeast | Clear | |
| 3am | 66°F19°C | 4 mph7 km/h East | Clear | |
| 4am | 65°F18°C | 4 mph6 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 15 | 66°F19°C | 89°F32°C | 7 mph11 km/h from South | Clear | Clear |
| July 16 | 61°F16°C | 83°F28°C | 6 mph9 km/h from Southwest | Clear | Clear |
| July 17 | 59°F15°C | 85°F29°C | 5 mph9 km/h from Southwest | Clear | Clear |
| July 18 | 60°F16°C | 87°F30°C | 6 mph9 km/h from Southwest | Clear | Clear |
| July 19 | 62°F17°C | 87°F31°C | 5 mph9 km/h from Southwest | Clear | Clear |
| July 20 | 62°F17°C | 88°F31°C | 6 mph9 km/h from Southwest | Clear | Clear |
| July 21 | 64°F18°C | 83°F28°C | 7 mph12 km/h from South | Clear | Clear |
No
Low of 61°F16°C, High of 83°F29°CWind: 6 mph9 km/h
Precipitation: None