Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 5°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

Monday
23rd Mar
5

0

10

5
Tuesday
24th Mar
12

1

3

4
Wednesday
25th Mar
19

5

5

5
Thursday
26th Mar
20

5

2

5
Friday
27th Mar
5

0

8

5

5-day weather forecast updated at 04:00 on Monday 23rd March 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.

12
Springfield
5
Chicago

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 Monday 23rd March 2026

Expect scattered clouds in Illinois with a maximum temperature of 5°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

5
°C maximum temperature
0
°C minimum temperature
scattered clouds
10
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
2
°C wind chill
15
kph wind from N

Illinois weather for Tuesday 24th March 2026

Expect broken clouds in Illinois with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the south.

12
°C maximum temperature
1
°C minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
6
kph wind from S

Illinois weather for Wednesday 25th March 2026

Expect broken clouds in Illinois with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

19
°C maximum temperature
5
°C minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from S

Illinois weather for Thursday 26th March 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 20°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 65% chance of some rain and a gentle breeze of 17 kph from the north.

20
°C maximum temperature
5
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
5
UV index (Moderate)
65
% chance of some rain
<10
mm of rainfall expected
20
°C wind chill
17
kph wind from N

Illinois weather for Friday 27th March 2026

Expect sunshine and showers in Illinois with a maximum temperature of 5°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 6% chance of some rain and a gentle breeze of 17 kph from the north.