Which is the hottest month in Chicago?

The hottest time of year in Chicago is normally July. Expect maximum daytime temperatures to reach 29°C with moderate heat and humidity.

Which month has the most rain in Chicago?

In terms of rainfall, July is usually the wettest month in Chicago with 100mm on average. There are normally 10 days in July with some rain.

When is it sunniest in Chicago?

The sunniest time of year in Chicago is normally July with bright sunshine on average for 69% of daylight hours; that's 10 hours of sunshine per day.

When is the sea warmest in Chicago?

The sea is usually at its warmest in Chicago in August when the water temperature reaches 21°C.

Best time to visit Chicago

Q: When is the best time to visit Chicago?

The best time to visit Chicago is June based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Chicago by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Destination

When is the best time to visit Chicago?

The best time to visit Chicago is June based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0.5
Jan
1
Feb
1.5
Mar
1.5
Apr
4
May
5
Jun
4.5
Jul
4.5
Aug
4
Sep
1.5
Oct
0.5
Nov
0
Dec

Change criteria

Max Day Temperature (°F)

30
Jan
34
Feb
46
Mar
59
Apr
70
May
81
Jun
84
Jul
82
Aug
75
Sep
63
Oct
48
Nov
36
Dec

Hours of Sunshine (daily)

4
Jan
5
Feb
6
Mar
7
Apr
9
May
10
Jun
10
Jul
9
Aug
8
Sep
6
Oct
4
Nov
3
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Illinois (Chicago) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)