Yes
you do need a jacket based on the weather in Washington, IL, USA 1 second ago
Why? Because it's quite chilly.
40°F5°C & Clear
Wind is 9 mph14 km/h from the E, gusting to 18 mph29 km/h
| April 25 | ||||
| 2am | 39°F4°C | 9 mph14 km/h E | Clear | |
| 3am | 38°F3°C | 8 mph12 km/h E | Clear | |
| 4am | 36°F2°C | 7 mph11 km/h E | Clear | |
| 5am | 35°F2°C | 7 mph12 km/h E | Mostly Clear | |
| 6am | 34°F1°C | 7 mph12 km/h E | Partly Cloudy | |
| 7am | 34°F1°C | 7 mph11 km/h E | Mostly Cloudy | |
| 8am | 35°F2°C | 7 mph11 km/h E | Mostly Cloudy | |
| 9am | 39°F4°C | 8 mph13 km/h SE | Mostly Cloudy | |
| 10am | 43°F6°C | 8 mph13 km/h SE | Partly Cloudy | |
| 11am | 47°F9°C | 7 mph12 km/h SE | Partly Cloudy | |
| 12pm | 52°F11°C | 8 mph13 km/h SE | Partly Cloudy | |
| 1pm | 55°F13°C | 8 mph13 km/h SE | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 25 | 34°F1°C | 62°F17°C | 8 mph14 km/h from SE | Partly Cloudy | Mostly Cloudy |
| April 26 | 45°F7°C | 64°F18°C | 17 mph27 km/h from SE | Rain | Rain |
| April 27 | 61°F16°C | 79°F26°C | 18 mph29 km/h from S | Windy | Thunderstorms |
| April 28 | 64°F18°C | 75°F24°C | 16 mph26 km/h from S | Rain | Rain |
| April 29 | 55°F13°C | 69°F21°C | 13 mph21 km/h from SW | Mostly Cloudy | Partly Cloudy |
| April 30 | 49°F9°C | 74°F23°C | 7 mph11 km/h from SW | Mostly Clear | Mostly Clear |
| May 1 | 57°F14°C | 80°F27°C | 8 mph12 km/h from SW | Mostly Clear | Partly Cloudy |
Yes
Low of 46°F8°C, High of 64°F18°CWind: 17 mph27 km/h
Precipitation: 66% rain