Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 7°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

Thursday
25th Dec
7

5

1

2
Friday
26th Dec
9

5

0

1
Saturday
27th Dec
9

4

1

1
Sunday
28th Dec
11

-2

0

0
Monday
29th Dec
-3

-7

6

1

5-day weather forecast updated at 04:01 on Thursday 25th December 2025 GMT

More about Illinois

Illinois by month

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

Recommended for Illinois

TUI sale: 10% off 2026/2027 holidays

Discount Code

Save 10% on 2026/2027 holidays in biggest ever TUI sale
Max discount £500. T&Cs apply. £500 min spend
Travel between 1st May 2026 & 31st Oct 2027 (inclusive)

Show discount code

******ALE

Redeem TUI discount code >>

Expires at 23:59 on Saturday 31st Jan 2026 · 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.

14
Springfield
7
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 25th December 2025

Expect broken clouds in Illinois with a maximum temperature of 7°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 north-east.

7
°C maximum temperature
5
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
12
kph wind from NE

Illinois weather for Friday 26th December 2025

Expect isolated thunderstorms in Illinois with a maximum temperature of 9°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 27% chance of some rain and a light breeze of 11 kph from the south-east.

9
°C maximum temperature
5
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
1
UV index (Low)
27
% chance of some rain
<5
mm of rainfall expected
8
°C wind chill
11
kph wind from SE

Illinois weather for Saturday 27th December 2025

Expect broken clouds in Illinois with a maximum temperature of 9°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south-east.

9
°C maximum temperature
4
°C minimum temperature
broken clouds
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
8
°C wind chill
8
kph wind from SE

Illinois weather for Sunday 28th December 2025

Expect cloudy with sleet or snow in Illinois with a maximum temperature of 11°C and no hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 75% chance of some sleet or snow and a moderate breeze of 21 kph from the north-west.

11
°C maximum temperature
-2
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
0
UV index (None)
75
% chance of some sleet or snow
<5
mm of sleet/snow expected
11
°C wind chill
21
kph wind from NW

Illinois weather for Monday 29th December 2025

Expect clear skies with flurries of snow in Illinois with a maximum temperature of -3°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 11% chance of some snow and a moderate breeze of 21 kph from the north-west.