Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 16°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

Sunday
29th Mar
16

7

2

6
Monday
30th Mar
22

12

6

6
Tuesday
31st Mar
22

9

0

5
Wednesday
1st Apr
8

2

5

3
Thursday
2nd Apr
6

3

0

1

5-day weather forecast updated at 04:00 on Sunday 29th March 2026 GMT

More about Illinois

Illinois by month

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

Recommended for Illinois

TUI: Top deals & discounts on 2026/2027 holidays

Sale

Explore latest special offers & online deals from TUI
Free child places & £0 deposits with direct debit available
Book summer & winter sun holidays in 2026/2027

Go to TUI deal >>

View all TUI offers

TUI deal finder

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.

19
Springfield
16
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 29th March 2026

Expect broken clouds in Illinois with a maximum temperature of 16°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-west.

16
°C maximum temperature
7
°C minimum temperature
broken clouds
2
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from SW

Illinois weather for Monday 30th March 2026

Expect broken clouds in Illinois with a maximum temperature of 22°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south.

22
°C maximum temperature
12
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from S

Illinois weather for Tuesday 31st March 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 95% chance of some rain and a gentle breeze of 15 kph from the south-west.

22
°C maximum temperature
9
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
5
UV index (Moderate)
95
% chance of some rain
<20
mm of rainfall expected
22
°C wind chill
15
kph wind from SW

Illinois weather for Wednesday 1st April 2026

Expect broken clouds in Illinois with a maximum temperature of 8°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

8
°C maximum temperature
2
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
6
°C wind chill
14
kph wind from NE

Illinois weather for Thursday 2nd April 2026

Expect mostly cloudy with rain in Illinois with a maximum temperature of 6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 56% chance of some rain and a gentle breeze of 14 kph from the east.