Forecast Details for Chicago, IL

Recent Locations: Little Rock, AR Midland, TX Chicago, IL

Current Alerts for Chicago, IL: Flash Flood Warning Flood Advisory
Flood Watch Hydrologic Outlook

Tonight: Showers and thunderstorms, mainly before 3am. Some of the storms could be severe and produce heavy rainfall. Low around 65. West southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday: Showers and thunderstorms, mainly before noon, then showers likely and possibly a thunderstorm after 4pm. High near 74. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night: Showers and possibly a thunderstorm. Low around 58. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

Thursday Night: Mostly cloudy, with a low around 49. North northwest wind around 5 mph becoming east after midnight. Winds could gust as high as 15 mph.

Friday: Partly sunny, with a high near 72.

Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 56. Chance of precipitation is 80%.

Saturday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 66.

Saturday Night: Partly cloudy, with a low around 38.

Sunday: Mostly sunny, with a high near 51.

Sunday Night: Mostly clear, with a low around 37.

Monday: Sunny, with a high near 53.

Monday Night: Mostly clear, with a low around 41.

Tuesday: Mostly sunny, with a high near 64.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

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National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation