Chicago weather live forecast

Today's maximum temperature in Chicago is expected to be 21°C. Select a day from the live weather forecast for Chicago, Illinois, USA for more weather parameters.

Wednesday
30th Sep
21

18

0

1
Thursday
1st Oct
21

18

0

1
Friday
2nd Oct
18

14

3

5
Saturday
3rd Oct
17

14

11

5
Sunday
4th Oct
19

13

4

6

5-day weather forecast updated at 04:00 on Wednesday 30th September 2026 GMT

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The 5-day weather forecast for Illinois (Chicago) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Chicago weather forecast by day

Below are the detailed weather forecasts for Chicago for the next 5 days.

Chicago weather for Wednesday 30th September 2026

Expect mostly cloudy with rain in Chicago, Illinois with a maximum temperature of 21°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a light breeze of 11 kph from the south.

21
°C maximum temperature
18
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
99
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
11
kph wind from S

Chicago weather for Thursday 1st October 2026

Expect cloudy with some rain in Chicago, Illinois with a maximum temperature of 21°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 98% chance of some rain and a light breeze of 9 kph from the south-west.

21
°C maximum temperature
18
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
98
% chance of some rain
<40
mm of rainfall expected
21
°C wind chill
9
kph wind from SW

Chicago weather for Friday 2nd October 2026

Expect broken clouds in Chicago, Illinois with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north.

18
°C maximum temperature
14
°C minimum temperature
broken clouds
3
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
12
kph wind from N

Chicago weather for Saturday 3rd October 2026

Expect scattered clouds in Chicago, Illinois with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the east.

17
°C maximum temperature
14
°C minimum temperature
scattered clouds
11
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
17
°C wind chill
8
kph wind from E

Chicago weather for Sunday 4th October 2026

Expect broken clouds in Chicago, Illinois with a maximum temperature of 19°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-west.