Yes
you do need a jacket based on the weather in Boulder, CO, USA 1 second ago
Why? Because too cold for just a hoodie, too warm for a parka!
47°F8°C & Clear
Wind is 4 mph6 km/h from the Southeast, gusting to 6 mph10 km/h
| January 15 | ||||
| 3pm | 47°F9°C | 4 mph7 km/h Southeast | Clear | |
| 4pm | 50°F10°C | 4 mph7 km/h Southeast | Clear | |
| 5pm | 50°F10°C | 4 mph6 km/h Southeast | Clear | |
| 6pm | 48°F9°C | 4 mph7 km/h Southeast | Clear | |
| 7pm | 43°F6°C | 5 mph8 km/h Southwest | Clear | |
| 8pm | 40°F5°C | 6 mph10 km/h West | Clear | |
| 9pm | 39°F4°C | 6 mph10 km/h West | Clear | |
| 10pm | 37°F3°C | 8 mph13 km/h West | Clear | |
| 11pm | 37°F3°C | 8 mph12 km/h West | Clear | |
| January 16 | ||||
| 12am | 36°F2°C | 7 mph12 km/h West | Clear | |
| 1am | 35°F2°C | 7 mph11 km/h West | Clear | |
| 2am | 34°F1°C | 5 mph9 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 15 | 20°F-6°C | 50°F10°C | 4 mph6 km/h from South | Clear | Clear |
| January 16 | 31°F-0°C | 54°F12°C | 5 mph7 km/h from West | Clear | Clear |
| January 17 | 16°F-9°C | 44°F7°C | 9 mph15 km/h from Northwest | Mostly Cloudy | Haze |
| January 18 | 5°F-15°C | 16°F-9°C | 4 mph7 km/h from East | Haze | Partly Cloudy |
| January 19 | -5°F-20°C | 12°F-11°C | 3 mph6 km/h from Northeast | Partly Cloudy | Haze |
| January 20 | -3°F-20°C | 5°F-15°C | 4 mph6 km/h from East | Partly Cloudy | Clear |
| January 21 | 4°F-16°C | 32°F-0°C | 7 mph12 km/h from West | Partly Cloudy | Mostly Cloudy |
Yes
Low of 31°F-1°C, High of 54°F12°CWind: 5 mph7 km/h
Precipitation: None