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.

Saturday
14th Mar
5

0

1

2
Sunday
15th Mar
15

4

1

2
Monday
16th Mar
3

-9

0

1
Tuesday
17th Mar
-4

-10

10

3
Wednesday
18th Mar
5

-4

2

3

5-day weather forecast updated at 04:00 on Saturday 14th 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 Saturday 14th March 2026

Expect broken clouds in Illinois with a maximum temperature of 5°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

5
°C maximum temperature
0
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
12
kph wind from E

Illinois weather for Sunday 15th March 2026

Expect mostly cloudy with rain in Illinois with a maximum temperature of 15°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a gentle breeze of 19 kph from the south.

15
°C maximum temperature
4
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
96
% chance of some rain
<20
mm of rainfall expected
15
°C wind chill
19
kph wind from S

Illinois weather for Monday 16th March 2026

Expect cloudy with sleet or snow in Illinois with a maximum temperature of 3°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of sleet/snow expected with 85% chance of some sleet or snow and a moderate breeze of 23 kph from the north-west.

3
°C maximum temperature
-9
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
1
UV index (Low)
85
% chance of some sleet or snow
<20
mm of sleet/snow expected
-2
°C wind chill
23
kph wind from NW

Illinois weather for Tuesday 17th March 2026

Expect clear skies with flurries of snow in Illinois with a maximum temperature of -4°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0-2 cm of snow expected with 30% chance of some snow and a gentle breeze of 15 kph from the north-west.

-4
°C maximum temperature
-10
°C minimum temperature
clear skies with flurries of snow
10
hours of sunshine
3
UV index (Moderate)
30
% chance of some snow
<2
cm of snow expected
-10
°C wind chill
15
kph wind from NW

Illinois weather for Wednesday 18th March 2026

Expect mostly cloudy with light snow in Illinois with a maximum temperature of 5°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 38% chance of some snow and a gentle breeze of 13 kph from the south.