Illinois Weather

Welcome to the live Illinois weather hub. Get current conditions, hourly forecasts, 7-day outlooks, and severe weather alerts for the largest cities in Illinois — all on one page.

Illinois is part of Midwest and has a humid continental climate. In simple terms, the Midwest sees a true four-season continental climate, including cold winters, severe spring thunderstorms, hot humid summers, and crisp autumns. Because Illinois can span hundreds of miles and several climate zones, local weather may differ noticeably from the statewide average, which is why city-level forecasts are essential.

Below you'll find direct links to live forecasts for 1 major Illinois cities. Each city page includes today's temperature, hour-by-hour conditions, a 7-day forecast, and any active storm or weather alerts pulled from official sources.

Use the weather maps page to see interactive radar, precipitation, cloud cover, temperature, and wind layers covering Illinois and the rest of the United States. Use the hourly page for a deeper look at the next 24 hours, and the 7-day forecast page for extended planning.

Illinois weather changes throughout the year and you should always check the latest forecast before traveling, planning outdoor events, or preparing for severe weather. Bookmark this page for quick access to live Illinois weather, temperature today, rain and storm forecasts, and current conditions across the state.