Champaign weather live forecast

Today's maximum temperature in Champaign is expected to be 31°C. Select a day from the live weather forecast for Champaign, Illinois, USA for more weather parameters.

Saturday
19th Sep
31

21

4

5
Sunday
20th Sep
25

18

1

4
Monday
21st Sep
20

15

1

2
Tuesday
22nd Sep
19

13

6

1
Wednesday
23rd Sep
18

13

2

4

5-day weather forecast updated at 04:01 on Saturday 19th September 2026 GMT

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

Champaign weather forecast by day

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

Champaign weather for Saturday 19th September 2026

Expect isolated thunderstorms in Champaign, Illinois with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 67% chance of some rain and little or no wind of 5 kph from the south.

31
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
5
UV index (Moderate)
67
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
5
kph wind from S

Champaign weather for Sunday 20th September 2026

Expect isolated thunderstorms in Champaign, Illinois with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 55% chance of some rain and a light breeze of 9 kph from the north-east.

25
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
4
UV index (Moderate)
55
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
9
kph wind from NE

Champaign weather for Monday 21st September 2026

Expect broken clouds in Champaign, Illinois with a maximum temperature of 20°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-east.

20
°C maximum temperature
15
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
20
°C wind chill
10
kph wind from NE

Champaign weather for Tuesday 22nd September 2026

Expect broken clouds in Champaign, Illinois with a maximum temperature of 19°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-east.

19
°C maximum temperature
13
°C minimum temperature
broken clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
19
°C wind chill
10
kph wind from NE

Champaign weather for Wednesday 23rd September 2026

Expect broken clouds in Champaign, Illinois with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north.