Illinois (Chicago)
10 day weather forecast for Illinois
Sunday, July 19th, 2026, at 05:33
today
26° 20°
tomorrow
28° 19°
Tuesday
29° 21°
Wednesday
22° 17°
Thursday
26° 16°
Friday
23° 18°
Saturday
26° 18°
Seemore
Illinois Weather Pages
Illinois weather forecast
The weather forecast for Illinois over the next 5 days indicates warm conditions with temperatures ranging from 22 °C to 29 °C.
Rain is expected from Monday until Wednesday.
Wind speeds are expected to be breezy, averaging around 15 km/h.
Illinois 14 days weather forecast
This weeks weather in Illinois. Click on a date for detailed forecasts
Sun. 19
26°
20°
0 mm
Mon. 20
28°
19°
4.4 mm
Tue. 21
29°
21°
7.7 mm
Wed. 22
22°
17°
0.7 mm
Thu. 23
26°
16°
0 mm
Fri. 24
23°
18°
0.1 mm
Sat. 25
26°
18°
0 mm
Sun. 26
30°
21°
0 mm
Mon. 27
29°
22°
0 mm
Tue. 28
31°
24°
1 mm
Wed. 29
32°
22°
1.6 mm
Thu. 30
29°
25°
0 mm
Fri. 31
32°
23°
2.7 mm
Sat. 1
28°
22°
0 mm
Further Ahead
You can click on date
Access Illinois weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Illinois long range weather forecast
30 day weather forecast for Illinois
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. 🌀
Frequently asked questions about the weather in Illinois
How warm is it in Illinois over the next 14 days?
Over the next two weeks, temperatures in Illinois are expected to range from around 16 °C on the coldest nights up to about 32 °C on the warmest days. Use this range to plan what to pack and wear.
Will it rain in Illinois in the next two weeks?
Yes - rain is expected on about 8 of the next 14 days in Illinois, with roughly 18.3 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.
How windy is it in Illinois?
Maximum wind speeds in Illinois are forecast to reach about 26 km/h at their peak over the next 14 days.
When is the best time to visit Illinois?
For a month-by-month look at temperatures and rainfall, see our best time to visit Illinois guide.
How accurate is the 14-day forecast for Illinois?
Our Illinois forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.
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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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