Yes

you do need a jacket based on the weather in Normal, IL, USA 1 second ago

Why? Because it's not very warm out!
53°F12°C & Mostly Clear

Wind is 4 mph7 km/h from the Northwest, gusting to 9 mph15 km/h
April 21
10pm53°F12°C4 mph7 km/h NorthwestClear
11pm51°F11°C2 mph3 km/h NorthwestClear
April 22
12am50°F10°C3 mph5 km/h SoutheastClear
1am48°F9°C4 mph6 km/h SoutheastClear
2am46°F8°C4 mph6 km/h SoutheastClear
3am46°F8°C5 mph7 km/h SoutheastMostly Clear
4am45°F7°C5 mph8 km/h SoutheastMostly Clear
5am45°F7°C5 mph8 km/h SoutheastMostly Clear
6am45°F7°C5 mph8 km/h SoutheastPartly Cloudy
7am45°F7°C5 mph9 km/h SoutheastMostly Cloudy
8am47°F8°C6 mph10 km/h SoutheastPartly Cloudy
9am52°F11°C9 mph15 km/h SoutheastPartly Cloudy
DateLowHighWindDayNight
April 2148°F9°C60°F16°C14 mph23 km/h from WestMostly CloudyMostly Clear
April 2245°F7°C75°F24°C13 mph21 km/h from SouthMostly ClearPartly Cloudy
April 2355°F13°C76°F25°C8 mph14 km/h from SouthPartly CloudyPartly Cloudy
April 2454°F12°C79°F26°C8 mph13 km/h from SoutheastPartly CloudyRain
April 2556°F13°C73°F23°C9 mph14 km/h from SouthwestRainRain
April 2650°F10°C66°F19°C11 mph18 km/h from NortheastMostly CloudyMostly Cloudy
April 2749°F10°C69°F20°C11 mph17 km/h from SoutheastCloudyDrizzle

Yes

Low of 45°F7°C, High of 74°F24°C
Wind: 13 mph21 km/h
Precipitation: None

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