Chicago weather live forecast

Today's maximum temperature in Chicago is expected to be 22°C. Select a day from the live weather forecast for Chicago, Illinois, USA for more weather parameters.

Wednesday
16th Sep
22

21

1

5
Thursday
17th Sep
22

21

1

4
Friday
18th Sep
22

20

7

6
Saturday
19th Sep
26

20

1

3
Sunday
20th Sep
21

18

0

1

5-day weather forecast updated at 04:00 on Wednesday 16th 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 16th September 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 74% chance of some rain and a light breeze of 8 kph from the north-east.

22
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
5
UV index (Moderate)
74
% chance of some rain
<20
mm of rainfall expected
22
°C wind chill
8
kph wind from NE

Chicago weather for Thursday 17th September 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 48% chance of some rain and a light breeze of 7 kph from the north.

22
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
4
UV index (Moderate)
48
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
7
kph wind from N

Chicago weather for Friday 18th September 2026

Expect broken clouds in Chicago, Illinois with a maximum temperature of 22°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the east.

22
°C maximum temperature
20
°C minimum temperature
broken clouds
7
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from E

Chicago weather for Saturday 19th September 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 89% chance of some rain and a light breeze of 11 kph from the south-east.

26
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
3
UV index (Moderate)
89
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
11
kph wind from SE

Chicago weather for Sunday 20th September 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 21°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 66% chance of some rain and a gentle breeze of 13 kph from the north-east.