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°C
°F
Illinois
Forecast Today Tomorrow
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United States
Illinois (Chicago)
AuroraBolingbrookChicagoJolietNapervilleRockford More Locations
United States weather
today
Moderate rain
3° 0°
tomorrow
Overcast
6° 4°
Saturday
Overcast
6° 3°
Sunday
Partly cloudy
10° 6°
Monday
Patchy rain possible
9° 4°
Tuesday
Sunny
3° 0°
Wednesday
Sunny
5° 0°
 More Details See
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Weather forecast for Illinois 

The weather forecast for Illinois over the next 3 days indicates damp and frigid conditions with temperatures ranging from 3 °F to 6 °F.

Rain is expected on Thursday and Monday.

Wind speeds are expected to be strong, averaging around 44 km/h.

On Sunday, a significant warming trend with temperatures reaching 10°C.

Weather today
Illinois weather forecast

Illinois 14 days weather forecast

Click on a date for detailed forecasts
Thu. 21
3°
0°
Moderate rain
6.9 mm
Fri. 22
6°
4°
Overcast
0 mm
Sat. 23
6°
3°
Overcast
0 mm
Sun. 24
10°
6°
Partly cloudy
0.1 mm
Mon. 25
9°
4°
Patchy rain possible
1.1 mm
Tue. 26
3°
0°
Sunny
0 mm
Wed. 27
5°
0°
Sunny
0 mm
Thu. 28
4°
3°
Partly cloudy
0 mm
Fri. 29
5°
2°
Patchy rain possible
0 mm
Sat. 30
2°
-1°
Partly cloudy
0 mm
Sun. 1
4°
0°
Overcast
0 mm
Mon. 2
8°
4°
Patchy rain possible
1.7 mm
Tue. 3
1°
-2°
Partly cloudy
0 mm
Further Ahead
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Access Illinois weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Illinois long range weather forecast

30 day weather forecast for Illinois
October
December
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Cloudy
9°
2
Overcast
12°
3
Overcast
15°
4
Patchy rain possible
15°
5
Mist
15°
6
Patchy rain possible
14°
7
Fog
13°
8
Patchy rain possible
15°
9
Overcast
14°
10
Sunny
13°
11
Mist
9°
12
Cloudy
11°
13
Sunny
12°
14
Mist
12°
15
Sunny
13°
16
Overcast
13°
17
Light rain shower
13°
18
Sunny
12°
19
Sunny
13°
20
Light rain
8°
21
Moderate rain
3°
22
Overcast
6°
23
Overcast
6°
24
Partly cloudy
10°
25
Patchy rain possible
9°
26
Sunny
3°
27
Sunny
5°
28
Partly cloudy
4°
29
Patchy rain possible
5°
30
Partly cloudy
2°
Important Notice
Our Illinois long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

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Provinces in Illinois
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Cook CountyDuPage CountyKane CountyWill CountyWinnebago County
Top locations in Illinois
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AuroraBolingbrookChicagoJolietNapervilleRockford
More Locations
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Location coordinates Where is Illinois?

Get accurate weather forecasts for Illinois, located at latitude 41.85 and longitude -87.65. Stay updated with localized weather information tailored for Illinois.

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