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Chicago weather in October 2023
- 17°C max day temperature
17 - 6 hours of sunshine per day
- 9 days with some rainfall
9 - 6°C min night temperature
6 - 11 hours of daylight per day
11 - No heat & humidity
0 - 68 mm of monthly rainfall
68 - 4 (Moderate) UV index
4 - 14°C sea temperature
14
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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.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How warm is it in Chicago in October?
Daytime temperatures usually reach 17°C in Chicago in October, falling to 6°C at night.
How sunny is it in Chicago in October?
There are normally 6 hours of bright sunshine each day in Chicago in October - that's 56% of daylight hours.
How warm is the sea around Chicago in October?
The average sea temperature around Chicago in October is 14°C.
Does it rain in Chicago in October?
There are usually 9 days with some rain in Chicago in October and the average monthly rainfall is 68mm.
Chicago October sunrise & sunset times
Browse the sunrise and sunset times for Chicago in October 2023. Select a month to view Chicago sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Sunday, 1st October 2023 | 06:47 | 18:32 |
| Monday, 16th October 2023 | 07:04 | 18:08 |
| Tuesday, 31st October 2023 | 07:22 | 17:46 |
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