Yes
you do need a jacket based on the weather in Boulder, CO, USA 1 second ago
Why? Because it's colder than a polar bear's pyjamas
28°F-2°C & Haze
Wind is 2 mph3 km/h from the NE, gusting to 4 mph6 km/h
| April 20 | ||||
| 8am | 29°F-2°C | 2 mph4 km/h NE | Snow | |
| 9am | 30°F-1°C | 2 mph4 km/h NE | Haze | |
| 10am | 31°F-1°C | 4 mph6 km/h NE | Cloudy | |
| 11am | 32°F0°C | 4 mph7 km/h NE | Cloudy | |
| 12pm | 34°F1°C | 4 mph7 km/h NE | Cloudy | |
| 1pm | 35°F2°C | 5 mph8 km/h NE | Cloudy | |
| 2pm | 36°F2°C | 5 mph9 km/h NE | Mostly Cloudy | |
| 3pm | 37°F3°C | 5 mph9 km/h NE | Cloudy | |
| 4pm | 39°F4°C | 5 mph9 km/h NE | Cloudy | |
| 5pm | 39°F4°C | 6 mph10 km/h NE | Cloudy | |
| 6pm | 40°F4°C | 6 mph9 km/h NE | Cloudy | |
| 7pm | 39°F4°C | 6 mph9 km/h NE | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 20 | 28°F-2°C | 40°F4°C | 5 mph8 km/h from NE | Cloudy | Mostly Cloudy |
| April 21 | 30°F-1°C | 58°F15°C | 4 mph6 km/h from SE | Mostly Clear | Partly Cloudy |
| April 22 | 43°F6°C | 72°F22°C | 6 mph10 km/h from W | Partly Cloudy | Mostly Clear |
| April 23 | 40°F5°C | 58°F15°C | 5 mph7 km/h from E | Partly Cloudy | Mostly Clear |
| April 24 | 40°F4°C | 71°F22°C | 3 mph5 km/h from E | Mostly Clear | Clear |
| April 25 | 46°F8°C | 75°F24°C | 7 mph12 km/h from W | Mostly Clear | Mostly Cloudy |
| April 26 | 47°F8°C | 64°F18°C | 6 mph9 km/h from W | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 29°F-2°C, High of 58°F15°CWind: 4 mph6 km/h
Precipitation: None