Forecast Details for Chicago, IL

Recent Locations: Chicago, IL  
Current Alerts for Chicago, IL: Special Weather Statement
Tonight: A chance of freezing rain, mainly after 5am. Mostly cloudy, with a low around 30. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Monday: A chance of drizzle or freezing rain before 10am, then a chance of drizzle between 10am and noon, then a chance of rain after noon. Cloudy, with a high near 39. South southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Monday Night: Mostly cloudy, with a low around 33. West southwest wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.
Tuesday: Mostly cloudy, with a high near 40. North northwest wind around 5 mph becoming east northeast in the afternoon.
Tuesday Night: A 30 percent chance of rain, mainly after midnight. Cloudy, with a low around 34. East wind around 5 mph becoming calm in the evening.
Christmas Day: A 40 percent chance of rain. Cloudy, with a high near 41.
Wednesday Night: A 20 percent chance of rain before midnight. Cloudy, with a low around 38.
Thursday: Cloudy, with a high near 45.
Thursday Night: A chance of rain after midnight. Cloudy, with a low around 42.
Friday: A chance of rain. Cloudy, with a high near 51.
Friday Night: A chance of rain. Cloudy, with a low around 45.
Saturday: A chance of rain. Mostly cloudy, with a high near 51.
Saturday Night: A chance of rain. Mostly cloudy, with a low around 42.
Sunday: A chance of rain. Mostly cloudy, with a high near 48.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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

Today's National Weather Map

National Weather Forecast for Tomorrow

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

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

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

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