Illinois weather forecast

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Below are temperatures expected tomorrow at popular destinations in Illinois. Select a destination to see the 5-day weather forecast.

20
Springfield
14
Chicago

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

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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 17th September 2020

Below is the Illinois weather forecast for Thursday 17th September 2020. Expect mostly cloudy with light rain in Illinois with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 23 kph from the north-east.

18
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
5
UV index (Moderate)
25
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
23
kph wind from NE

Illinois weather for Friday 18th September 2020

Below is the Illinois weather forecast for Friday 18th September 2020. Expect broken clouds in Illinois with a maximum temperature of 14°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north-east.

14
°C maximum temperature
11
°C minimum temperature
broken clouds
3
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
21
kph wind from NE

Illinois weather for Saturday 19th September 2020

Below is the Illinois weather forecast for Saturday 19th September 2020. Expect scattered clouds in Illinois with a maximum temperature of 16°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

16
°C maximum temperature
9
°C minimum temperature
scattered clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
16
°C wind chill
12
kph wind from E

Illinois weather for Sunday 20th September 2020

Below is the Illinois weather forecast for Sunday 20th September 2020. Expect scattered clouds in Illinois with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-east.

19
°C maximum temperature
9
°C minimum temperature
scattered clouds
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
19
°C wind chill
17
kph wind from SE

Illinois weather for Monday 21st September 2020

Below is the Illinois weather forecast for Monday 21st September 2020. Expect clear skies in Illinois with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.