Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 25°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

Sunday
12th Apr
25

11

2

6
Monday
13th Apr
26

18

4

5
Tuesday
14th Apr
26

19

6

5
Wednesday
15th Apr
24

19

1

5
Thursday
16th Apr
23

16

3

7

5-day weather forecast updated at 04:00 on Sunday 12th April 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.

26
Springfield
25
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 Sunday 12th April 2026

Expect mostly cloudy with light rain in Illinois with a maximum temperature of 25°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 16 kph from the south-west.

25
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
6
UV index (High)
74
% chance of some rain
<5
mm of rainfall expected
25
°C wind chill
16
kph wind from SW

Illinois weather for Monday 13th April 2026

Expect mostly cloudy with rain in Illinois with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 26% chance of some rain and a gentle breeze of 14 kph from the south-west.

26
°C maximum temperature
18
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
5
UV index (Moderate)
26
% chance of some rain
<10
mm of rainfall expected
26
°C wind chill
14
kph wind from SW

Illinois weather for Tuesday 14th April 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a gentle breeze of 13 kph from the south-west.

26
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
5
UV index (Moderate)
90
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
13
kph wind from SW

Illinois weather for Wednesday 15th April 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 76% chance of some rain and a light breeze of 9 kph from the south-west.

24
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
5
UV index (Moderate)
76
% chance of some rain
<30
mm of rainfall expected
24
°C wind chill
9
kph wind from SW

Illinois weather for Thursday 16th April 2026

Expect mostly cloudy with light rain in Illinois with a maximum temperature of 23°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 26% chance of some rain and a light breeze of 9 kph from the south-west.