Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 34°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

Thursday
2nd Jul
34

28

10

9
Friday
3rd Jul
31

27

8

8
Saturday
4th Jul
29

24

7

8
Sunday
5th Jul
26

22

13

8
Monday
6th Jul
25

21

10

7

5-day weather forecast updated at 04:00 on Thursday 2nd July 2026 GMT

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Destination

The 5-day weather forecast for Illinois (Chicago) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Top Illinois destinations

Below are temperatures expected today at popular countries, regions and places in Illinois. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

34
Chicago
34
Springfield

All Illinois destinations

Illinois weather forecast by day

Below are the detailed weather forecasts for Illinois for the next 5 days. The forecasts shown are for Chicago and may not represent the whole of Illinois. Browse more destinations in Illinois to view more weather forecasts.

Illinois weather for Thursday 2nd July 2026

Expect scattered clouds in Illinois with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

34
°C maximum temperature
28
°C minimum temperature
scattered clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
11
kph wind from SW

Illinois weather for Friday 3rd July 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 10-20 mm of rainfall expected with 66% chance of some rain and a light breeze of 7 kph from the south-west.

31
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
8
UV index (Very High)
66
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from SW

Illinois weather for Saturday 4th July 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 73% chance of some rain and a light breeze of 7 kph from the west.

29
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
73
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from W

Illinois weather for Sunday 5th July 2026

Expect scattered clouds in Illinois with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north.

26
°C maximum temperature
22
°C minimum temperature
scattered clouds
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
9
kph wind from N

Illinois weather for Monday 6th July 2026

Expect scattered clouds in Illinois with a maximum temperature of 25°C, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-east.