Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 9°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

Thursday
12th Mar
9

-1

7

3
Friday
13th Mar
8

2

9

3
Saturday
14th Mar
3

0

0

2
Sunday
15th Mar
13

0

1

0
Monday
16th Mar
-1

-7

3

3

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

10
Springfield
9
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 Thursday 12th March 2026

Expect broken clouds in Illinois with a maximum temperature of 9°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south.

9
°C maximum temperature
-1
°C minimum temperature
broken clouds
7
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
5
°C wind chill
21
kph wind from S

Illinois weather for Friday 13th March 2026

Expect sunshine and showers in Illinois with a maximum temperature of 8°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 11% chance of some rain and a moderate breeze of 28 kph from the west.

8
°C maximum temperature
2
°C minimum temperature
sunshine and showers
9
hours of sunshine
3
UV index (Moderate)
11
% chance of some rain
<2
mm of rainfall expected
4
°C wind chill
28
kph wind from W

Illinois weather for Saturday 14th March 2026

Expect overcast with light rain in Illinois with a maximum temperature of 3°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 74% chance of some rain and a light breeze of 10 kph from the east.

3
°C maximum temperature
0
°C minimum temperature
overcast with light rain
0
hours of sunshine
2
UV index (Low)
74
% chance of some rain
<2
mm of rainfall expected
1
°C wind chill
10
kph wind from E

Illinois weather for Sunday 15th March 2026

Expect cloudy with sleet or snow in Illinois with a maximum temperature of 13°C and 1 hour of bright sunshine. There are 10-20 mm of sleet/snow expected with 92% chance of some sleet or snow and a moderate breeze of 24 kph from the north-west.

13
°C maximum temperature
0
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
0
UV index (None)
92
% chance of some sleet or snow
<20
mm of sleet/snow expected
13
°C wind chill
24
kph wind from NW

Illinois weather for Monday 16th March 2026

Expect mostly cloudy with snow in Illinois with a maximum temperature of -1°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 5-10 cm of snow expected with 49% chance of some snow and a moderate breeze of 26 kph from the north-west.