Chicago weather live forecast

Today's maximum temperature in Chicago is expected to be 23°C. Select a day from the live weather forecast for Chicago, Illinois, USA for more weather parameters.

Thursday
17th Sep
23

21

0

3
Friday
18th Sep
21

21

5

6
Saturday
19th Sep
25

20

2

3
Sunday
20th Sep
21

18

0

3
Monday
21st Sep
18

17

0

1

5-day weather forecast updated at 04:00 on Thursday 17th September 2026 GMT

More about Chicago

Chicago by month

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

Recommended for Illinois

TUI: Top deals & discounts on 2026/2027 holidays

Sale

Explore latest special offers & online deals from TUI
Free child places & £0 deposits with direct debit available
Book summer & winter sun holidays in 2026/2027

Go to TUI deal >>

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.

Chicago weather forecast by day

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

Chicago weather for Thursday 17th September 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 23°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 52% chance of some rain and a light breeze of 9 kph from the north-east.

23
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
3
UV index (Moderate)
52
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
9
kph wind from NE

Chicago weather for Friday 18th September 2026

Expect broken clouds in Chicago, Illinois with a maximum temperature of 21°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the east.

21
°C maximum temperature
21
°C minimum temperature
broken clouds
5
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 25°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 85% chance of some rain and a light breeze of 10 kph from the south.

25
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
3
UV index (Moderate)
85
% chance of some rain
<30
mm of rainfall expected
0
no heat & humidity
10
kph wind from S

Chicago weather for Sunday 20th September 2026

Expect overcast skies in Chicago, Illinois with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

21
°C maximum temperature
18
°C minimum temperature
overcast skies
0
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
14
kph wind from NE

Chicago weather for Monday 21st September 2026

Expect overcast skies in Chicago, Illinois with a maximum temperature of 18°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the east.