Yes

you do need a jacket based on the weather in St Charles, IL 60174, USA 1 second ago

Why? Because it's cold enough that makes you wish you had a hat, but you're still too proud to admit it!
42°F5°C & Clear

Wind is 6 mph9 km/h from the West, gusting to 15 mph24 km/h
November 4
4am41°F5°C6 mph10 km/h WestClear
5am40°F4°C5 mph8 km/h WestMostly Cloudy
6am39°F4°C5 mph8 km/h WestCloudy
7am38°F4°C5 mph7 km/h WestCloudy
8am37°F3°C4 mph7 km/h WestCloudy
9am37°F3°C3 mph6 km/h SouthwestCloudy
10am37°F3°C4 mph6 km/h SouthwestCloudy
11am37°F3°C4 mph6 km/h SouthwestCloudy
12pm37°F3°C4 mph7 km/h SouthwestCloudy
1pm38°F3°C4 mph7 km/h SouthCloudy
2pm41°F5°C4 mph7 km/h SouthCloudy
3pm45°F7°C5 mph9 km/h SouthCloudy
DateLowHighWindDayNight
November 339°F4°C61°F16°C6 mph10 km/h from NorthwestClearMostly Cloudy
November 437°F3°C61°F16°C9 mph14 km/h from SouthPartly CloudyMostly Clear
November 538°F4°C58°F15°C14 mph22 km/h from NorthwestMostly ClearMostly Clear
November 632°F0°C55°F13°C9 mph14 km/h from SouthMostly CloudyRain
November 742°F6°C55°F13°C13 mph20 km/h from WestRainPartly Cloudy
November 836°F2°C49°F9°C5 mph7 km/h from SouthwestDrizzleRain
November 929°F-2°C42°F6°C16 mph26 km/h from NorthwestDrizzleMostly Cloudy

Yes

Low of 37°F3°C, High of 61°F16°C
Wind: 9 mph14 km/h
Precipitation: None

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