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10 day weather forecast for Illinois

Tuesday, October 28th, 2025, at 03:42 AM
today
Sunny
16° 9°
tomorrow
Overcast
12° 9°
Thursday
Overcast
9° 8°
Friday
Patchy rain possible
14° 7°
Saturday
Patchy rain possible
11° 8°
Sunday
Patchy rain possible
13° 8°
Monday
Sunny
16° 10°
 More Details See
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Illinois Weather Pages

Illinois weather forecast

The weather forecast for Illinois over the next 2 days indicates chilly conditions with temperatures ranging from 12 °F to 16 °F.

Light rain is expected from Friday until Saturday.

Wind speeds are expected to be strong, averaging around 31 km/h.

On Thursday, a notable cooling trend with temperatures reaching 9°C.

Weather today
Illinois weather forecast

Illinois 14 days weather forecast

This weeks weather in Illinois. Click on a date for detailed forecasts
Tue. 28
16°
9°
Sunny
0 mm
Wed. 29
12°
9°
Overcast
0 mm
Thu. 30
9°
8°
Overcast
0 mm
Fri. 31
14°
7°
Patchy rain possible
0.6 mm
Sat. 1
11°
8°
Patchy rain possible
1.9 mm
Sun. 2
13°
8°
Patchy rain possible
0.1 mm
Mon. 3
16°
10°
Sunny
0 mm
Tue. 4
15°
9°
Partly cloudy
0 mm
Wed. 5
22°
16°
Partly cloudy
0 mm
Thu. 6
22°
16°
Partly cloudy
0 mm
Fri. 7
17°
10°
Patchy rain possible
0.7 mm
Sat. 8
11°
8°
Partly cloudy
0 mm
Sun. 9
11°
10°
Patchy rain possible
0.2 mm
Mon. 10
10°
8°
Sunny
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
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
22°
2
Sunny
22°
3
Partly cloudy
24°
4
Moderate rain at times
23°
5
Cloudy
24°
6
Patchy rain possible
22°
7
Moderate or heavy rain shower
16°
8
Partly cloudy
17°
9
Sunny
19°
10
Sunny
19°
11
Moderate or heavy rain shower
21°
12
Moderate or heavy rain shower
19°
13
Overcast
17°
14
Moderate or heavy rain shower
15°
15
Moderate or heavy rain shower
14°
16
Overcast
15°
17
Overcast
16°
18
Sunny
19°
19
Sunny
17°
20
Sunny
19°
21
Overcast
18°
22
Overcast
16°
23
Partly cloudy
17°
24
Sunny
17°
25
Heavy rain at times
16°
26
Overcast
15°
27
Partly cloudy
15°
28
Sunny
16°
29
Overcast
12°
30
Overcast
9°
31
Patchy rain possible
14°
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.

Rain Forecast for the Next 14 Days in Illinois

The chart displays the expected rainfall values (in mm) over the next 14 days in Illinois, highlighting variations in precipitation levels for specific dates. ☔

Illinois Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Illinois over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

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Counties in Illinois
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Champaign CountyCook CountyDuPage CountyEffingham CountyKane CountyMacon CountyPeoria CountySangamon CountyWill CountyWilliamson CountyWinnebago County
Top locations in Illinois
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AuroraChicagoDecaturEffinghamEnergyJolietNapervillePeoriaRockfordSpringfield
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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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