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Illinois weather in October 2022
- 1717°C max day temperature
- 99 days with some rainfall
- 66°C min night temperature
- 1111 hours of daylight per day
- 0No heat & humidity
- 6868 mm of monthly rainfall
- 44 (Moderate) UV index
- 1414°C sea temperature
Below are average maximum temperatures at popular destinations in Illinois in October. Select a destination to see more weather parameters.
Recommended for Illinois
The October weather guide for Illinois (Chicago) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How warm is it in Illinois in October?
Daytime temperatures usually reach 17°C in Chicago, Illinois in October, falling to 6°C at night.
How sunny is it in Illinois in October?
There are normally 6 hours of bright sunshine each day in Chicago, Illinois in October - that's 56% of daylight hours.
How warm is the sea around Illinois in October?
The average sea temperature around Chicago, Illinois in October is 14°C.
Does it rain in Illinois in October?
There are usually 9 days with some rain in Chicago, Illinois in October and the average monthly rainfall is 68mm.
Illinois October sunrise & sunset times
Browse the sunrise and sunset times for Illinois in October 2022. Select a month to view Illinois sunrise and sunset times for the next 12 months. The Illinois sunrise and sunset times shown below are for Chicago.
|Date||Sunrise times||Sunset times|
|Saturday, 1st October 2022||06:48||18:32|
|Sunday, 16th October 2022||07:04||18:07|
|Monday, 31st October 2022||07:22||17:46|
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