Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be -4°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

Friday
2nd Jan
-4

-7

6

2
Saturday
3rd Jan
-1

-6

1

2
Sunday
4th Jan
0

-6

7

2
Monday
5th Jan
4

-1

5

2
Tuesday
6th Jan
6

2

1

1

5-day weather forecast updated at 04:00 on Friday 2nd January 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.

1
Springfield
-4
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 Friday 2nd January 2026

Expect broken clouds in Illinois with a maximum temperature of -4°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 cm of snow expected and little or no wind of 5 kph from the north-west.

-4
°C maximum temperature
-7
°C minimum temperature
broken clouds
6
hours of sunshine
2
UV index (Low)
0
cm of snow expected
-6
°C wind chill
5
kph wind from NW

Illinois weather for Saturday 3rd January 2026

Expect broken clouds in Illinois with a maximum temperature of -1°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and little or no wind of 6 kph from the north-west.

-1
°C maximum temperature
-6
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
cm of snow expected
-3
°C wind chill
6
kph wind from NW

Illinois weather for Sunday 4th January 2026

Expect clear skies with flurries of snow in Illinois with a maximum temperature of 0°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0-2 cm of snow expected with 25% chance of some snow and a light breeze of 10 kph from the south.

0
°C maximum temperature
-6
°C minimum temperature
clear skies with flurries of snow
7
hours of sunshine
2
UV index (Low)
25
% chance of some snow
<2
cm of snow expected
-3
°C wind chill
10
kph wind from S

Illinois weather for Monday 5th January 2026

Expect clear skies with flurries of snow in Illinois with a maximum temperature of 4°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 cm of snow expected with 4% chance of some snow and a light breeze of 12 kph from the south.

4
°C maximum temperature
-1
°C minimum temperature
clear skies with flurries of snow
5
hours of sunshine
2
UV index (Low)
4
% chance of some snow
<2
cm of snow expected
1
°C wind chill
12
kph wind from S

Illinois weather for Tuesday 6th January 2026

Expect mostly cloudy with light rain in Illinois with a maximum temperature of 6°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 13% chance of some rain and little or no wind of 4 kph from the south.