Yes
you do need a jacket based on the weather in Boulder, CO, USA 1 second ago
Why? Because it's not very warm out.
53°F11°C & Windy
Wind is 15 mph24 km/h from the W, gusting to 36 mph58 km/h
| April 25 | ||||
| 11pm | 53°F11°C | 14 mph23 km/h W | Cloudy | |
| April 26 | ||||
| 12am | 52°F11°C | 9 mph15 km/h W | Cloudy | |
| 1am | 51°F11°C | 5 mph8 km/h NW | Cloudy | |
| 2am | 50°F10°C | 5 mph7 km/h W | Cloudy | |
| 3am | 50°F10°C | 6 mph9 km/h W | Cloudy | |
| 4am | 49°F9°C | 5 mph8 km/h W | Cloudy | |
| 5am | 48°F9°C | 6 mph10 km/h W | Cloudy | |
| 6am | 48°F9°C | 7 mph11 km/h W | Cloudy | |
| 7am | 47°F8°C | 7 mph12 km/h W | Cloudy | |
| 8am | 47°F8°C | 8 mph13 km/h W | Mostly Cloudy | |
| 9am | 48°F9°C | 10 mph16 km/h W | Cloudy | |
| 10am | 51°F11°C | 12 mph19 km/h W | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 25 | 43°F6°C | 67°F20°C | 4 mph6 km/h from NW | Partly Cloudy | Cloudy |
| April 26 | 46°F8°C | 66°F19°C | 9 mph15 km/h from NW | Mostly Cloudy | Rain |
| April 27 | 39°F4°C | 46°F8°C | 8 mph13 km/h from NE | Rain | Rain |
| April 28 | 36°F2°C | 57°F14°C | 4 mph6 km/h from E | Mostly Cloudy | Mostly Clear |
| April 29 | 40°F4°C | 66°F19°C | 7 mph11 km/h from W | Mostly Clear | Mostly Clear |
| April 30 | 44°F7°C | 72°F22°C | 7 mph11 km/h from SW | Mostly Clear | Clear |
| May 1 | 41°F5°C | 59°F15°C | 6 mph10 km/h from E | Partly Cloudy | Mostly Cloudy |
Yes
Low of 46°F8°C, High of 66°F19°CWind: 9 mph15 km/h
Precipitation: 14% rain