Chicago weather live forecast

Today's maximum temperature in Chicago is expected to be 81°F. Select a day from the live weather forecast for Chicago, Illinois, USA for more weather parameters.

Saturday
15th Aug
81

73

1

4
Sunday
16th Aug
82

75

5

7
Monday
17th Aug
79

72

7

7
Tuesday
18th Aug
82

68

10

6
Wednesday
19th Aug
75

66

2

5

5-day weather forecast updated at 04:00 on Saturday 15th August 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 Saturday 15th August 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 86% chance of some rain and a light breeze of 5 mph from the south-east.

81
°F maximum temperature
73
°F minimum temperature
isolated thunderstorms
1
hour of sunshine
4
UV index (Moderate)
86
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
5
mph wind from SE

Chicago weather for Sunday 16th August 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 82°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 53% chance of some rain and a light breeze of 4 mph from the west.

82
°F maximum temperature
75
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
53
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
4
mph wind from W

Chicago weather for Monday 17th August 2026

Expect broken clouds in Chicago, Illinois with a maximum temperature of 79°F, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the north-east.

79
°F maximum temperature
72
°F minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
79
°F wind chill
4
mph wind from NE

Chicago weather for Tuesday 18th August 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a light breeze of 5 mph from the south-west.

82
°F maximum temperature
68
°F minimum temperature
isolated thunderstorms
10
hours of sunshine
6
UV index (High)
34
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
5
mph wind from SW

Chicago weather for Wednesday 19th August 2026

Expect isolated thunderstorms in Chicago, Illinois with a maximum temperature of 75°F, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 63% chance of some rain and a light breeze of 7 mph from the north.