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Illinois weather in May 2022
- 2121°C max day temperature
- 1111 days with some rainfall
- 99°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 8484 mm of monthly rainfall
- 77 (High) UV index
- 66°C sea temperature
Below are average maximum temperatures at popular destinations in Illinois in May. Select a destination to see more weather parameters.
Recommended for Illinois
The May 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 hot is it in Illinois in May?
Daytime temperatures usually reach 21°C in Chicago, Illinois in May, falling to 9°C at night.
How sunny is it in Illinois in May?
There are normally 9 hours of bright sunshine each day in Chicago, Illinois in May - that's 62% of daylight hours.
Is the sea cold around Illinois in May?
The average sea temperature around Chicago, Illinois in May is 6°C.
Does it rain in Illinois in May?
There are usually 11 days with some rain in Chicago, Illinois in May and the average monthly rainfall is 84mm.
Illinois May sunrise & sunset times
Browse the sunrise and sunset times for Illinois in May 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|
|Sunday, 1st May 2022||05:47||19:49|
|Monday, 16th May 2022||05:29||20:05|
|Tuesday, 31st May 2022||05:18||20:19|
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