No
you don't need a jacket based on the weather in Lassen Volcanic National Park, California, USA 1 second ago
65°F18°C & Clear
Wind is 4 mph6 km/h from the Northwest, gusting to 7 mph12 km/h
| August 12 | ||||
| 4am | 63°F17°C | 4 mph6 km/h Northwest | Clear | |
| 5am | 61°F16°C | 3 mph5 km/h Northwest | Clear | |
| 6am | 60°F16°C | 3 mph5 km/h Northwest | Clear | |
| 7am | 60°F16°C | 3 mph5 km/h West | Clear | |
| 8am | 61°F16°C | 2 mph3 km/h West | Clear | |
| 9am | 60°F16°C | 1 mph2 km/h Southeast | Clear | |
| 10am | 63°F17°C | 1 mph2 km/h Southeast | Clear | |
| 11am | 68°F20°C | 2 mph3 km/h South | Clear | |
| 12pm | 73°F23°C | 3 mph4 km/h South | Clear | |
| 1pm | 77°F25°C | 4 mph6 km/h Southwest | Clear | |
| 2pm | 80°F27°C | 5 mph8 km/h Southwest | Clear | |
| 3pm | 82°F28°C | 6 mph10 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 12 | 60°F16°C | 83°F28°C | 6 mph10 km/h from Southwest | Clear | Clear |
| August 13 | 58°F15°C | 78°F26°C | 6 mph10 km/h from Southwest | Mostly Clear | Clear |
| August 14 | 55°F13°C | 76°F24°C | 6 mph9 km/h from West | Clear | Clear |
| August 15 | 53°F12°C | 75°F24°C | 6 mph9 km/h from West | Mostly Clear | Mostly Clear |
| August 16 | 53°F12°C | 71°F22°C | 6 mph10 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| August 17 | 51°F10°C | 68°F20°C | 8 mph12 km/h from Southwest | Partly Cloudy | Mostly Clear |
| August 18 | 49°F9°C | 68°F20°C | 8 mph13 km/h from South | Mostly Clear | Clear |
Yes
Low of 58°F15°C, High of 78°F26°CWind: 6 mph10 km/h
Precipitation: None