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Chicago, USA Weather Averages

July is the hottest month in Chicago with an average temperature of 23°C (73°F) and the coldest is January at -6°C (21°F) with the most daily sunshine hours at 12 in July. The wettest month is July with an average of 100mm of rain..

Average Temperature Chicago

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Chicago

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Day Temperature Chicago

What is Average Day Temperature?
The average temperature recorded between sunrise and sunset
What is Average Day Temperature?
The average temperature recorded between sunrise and sunset

Average Night Temperature Chicago

What is Average Night Temperature?
The average temperature recorded between sunset and sunrise
What is Average Night Temperature?
The average temperature recorded between sunset and sunrise

Average Rainfall Chicago

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Average Daily Sunshine Hours Chicago

What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

Chicago : Next 24-Hour Weather

Today - 9th August 2026

Sunrise 05:52

Sunrise

Sunset 19:59

Sunset
18:00
Clear
26°C (77°F)
19:00
Clear
24°C (74°F)
20:00
Clear
23°C (73°F)
21:00
Clear
23°C (72°F)
22:00
Patchy rain possible
23°C (72°F)
23:00
Clear
24°C (74°F)

Tomorrow - 10th August 2026

Sunrise 05:52

Sunrise

Sunset 19:59

Sunset
0:00
Clear
24°C (74°F)
1:00
Patchy rain possible
24°C (74°F)
2:00
Patchy rain possible
23°C (72°F)
3:00
Patchy rain possible
23°C (72°F)
4:00
Moderate rain at times
23°C (72°F)
5:00
Patchy rain possible
23°C (72°F)
6:00
Mist
23°C (72°F)
7:00
Mist
23°C (73°F)
8:00
Thundery outbreaks possible
24°C (75°F)
9:00
Partly cloudy
25°C (76°F)
10:00
Partly cloudy
26°C (78°F)
11:00
Partly cloudy
27°C (79°F)
12:00
Cloudy
27°C (80°F)
13:00
Clear
28°C (82°F)
14:00
Thundery outbreaks possible
28°C (81°F)
15:00
Patchy light rain with thunder
25°C (76°F)
16:00
Light rain shower
24°C (75°F)
17:00
Clear
24°C (74°F)