Yes

you do need a jacket based on the weather in Rolling Meadows, IL, 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!
50°F10°C & Clear

Wind is 6 mph9 km/h from the North, gusting to 13 mph21 km/h
October 11
8am49°F10°C5 mph9 km/h NorthClear
9am51°F11°C6 mph10 km/h NorthClear
10am55°F13°C7 mph12 km/h NorthClear
11am59°F15°C7 mph12 km/h NortheastMostly Clear
12pm63°F17°C8 mph13 km/h NortheastMostly Clear
1pm65°F18°C8 mph13 km/h NortheastMostly Clear
2pm66°F19°C8 mph12 km/h NortheastMostly Clear
3pm66°F19°C8 mph12 km/h NortheastMostly Clear
4pm66°F19°C8 mph12 km/h NortheastPartly Cloudy
5pm65°F19°C8 mph13 km/h NortheastMostly Clear
6pm64°F18°C8 mph12 km/h NortheastMostly Clear
7pm62°F17°C6 mph10 km/h NortheastPartly Cloudy
DateLowHighWindDayNight
October 1149°F10°C66°F19°C7 mph12 km/h from NortheastMostly ClearMostly Clear
October 1251°F10°C69°F21°C6 mph10 km/h from SoutheastMostly ClearPartly Cloudy
October 1353°F12°C70°F21°C4 mph6 km/h from SouthMostly CloudyPartly Cloudy
October 1454°F12°C66°F19°C8 mph12 km/h from NortheastMostly CloudyMostly Cloudy
October 1552°F11°C62°F17°C6 mph10 km/h from NortheastPartly CloudyMostly Clear
October 1650°F10°C63°F17°C6 mph10 km/h from EastMostly CloudyMostly Cloudy
October 1755°F13°C71°F22°C9 mph14 km/h from SoutheastDrizzleRain

Yes

Low of 51°F11°C, High of 70°F21°C
Wind: 6 mph10 km/h
Precipitation: None

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