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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Illinois weather pages

Counties in Illinois

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Cook County DuPage County Kane County Macon County Peoria County Sangamon County Will County Williamson County Winnebago County

Top locations in Illinois

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Aurora Bolingbrook Chicago Decatur Energy Joliet Naperville Peoria Rockford Springfield

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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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Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
		1 6°	2 9°	3 9°	4 13°	5 12°
6 11°	7 9°	8 11°	9 10°	10 12°	11 12°	12 14°
13 16°	14 14°	15 13°	16 11°	17 10°	18 12°	19 13°
20 10°	21 13°	22 13°	23 21°	24 25°	25 20°	26 8°
27 18°	28 24°	29 24°	30 11°