Yes
you do need a jacket based on the weather in Grass Valley, CA, USA 1 second ago
Why? Because it's quite chilly!
40°F4°C & Mostly Clear
Wind is 5 mph8 km/h from the North, gusting to 7 mph12 km/h
| April 28 | ||||
| 10am | 41°F5°C | 4 mph7 km/h Northeast | Clear | |
| 11am | 47°F8°C | 3 mph5 km/h North | Clear | |
| 12pm | 52°F11°C | 4 mph6 km/h Northwest | Clear | |
| 1pm | 56°F13°C | 4 mph7 km/h Northwest | Clear | |
| 2pm | 59°F15°C | 5 mph8 km/h West | Clear | |
| 3pm | 61°F16°C | 6 mph9 km/h West | Clear | |
| 4pm | 63°F17°C | 6 mph10 km/h West | Clear | |
| 5pm | 64°F18°C | 7 mph11 km/h West | Clear | |
| 6pm | 65°F19°C | 7 mph11 km/h West | Clear | |
| 7pm | 66°F19°C | 7 mph11 km/h West | Clear | |
| 8pm | 66°F19°C | 6 mph10 km/h West | Clear | |
| 9pm | 65°F19°C | 5 mph8 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 28 | 40°F4°C | 66°F19°C | 5 mph8 km/h from West | Clear | Clear |
| April 29 | 49°F9°C | 70°F21°C | 5 mph8 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| April 30 | 52°F11°C | 71°F22°C | 4 mph7 km/h from West | Mostly Clear | Clear |
| May 1 | 53°F12°C | 74°F23°C | 5 mph8 km/h from West | Clear | Clear |
| May 2 | 51°F11°C | 69°F21°C | 7 mph12 km/h from South | Mostly Clear | Mostly Cloudy |
| May 3 | 41°F5°C | 53°F12°C | 7 mph12 km/h from South | Rain | Drizzle |
| May 4 | 38°F3°C | 54°F12°C | 5 mph9 km/h from West | Mostly Cloudy | Mostly Clear |
Yes
Low of 49°F10°C, High of 70°F21°CWind: 5 mph8 km/h
Precipitation: None