Forecast Details for Chicago O'Hare International Airport, IL

Recent Locations: Chicago O'Hare International Airport, IL  
Today: Mostly sunny, with a high near 31. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight: Mostly cloudy, with a low around 25. South southwest wind around 15 mph, with gusts as high as 30 mph.
Wednesday: Scattered snow showers after 3pm. Mostly cloudy, with a high near 39. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Wednesday Night: Scattered snow showers, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 13. Wind chill values as low as -4. Blustery, with a west northwest wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.
Thursday: Sunny, with a high near 26. West northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday Night: Mostly clear, with a low around 16.
Friday: Sunny, with a high near 31.
Friday Night: Mostly cloudy, with a low around 25.
Saturday: Partly sunny, with a high near 40.
Saturday Night: Partly cloudy, with a low around 31.
Sunday: Partly sunny, with a high near 45.
Sunday Night: Mostly cloudy, with a low around 37.
Monday: A chance of rain. Mostly cloudy, with a high near 45.

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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