Forecast Details for Chicago, IL

Recent Locations: Chicago, IL  
Current Alerts for Chicago, IL: Wind Advisory Winter Weather Advisory
Overnight: Scattered snow showers. Cloudy, with a low around 31. West northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Thursday: Rain and snow, becoming all rain after 3pm. The snow could be heavy at times. High near 43. Breezy, with a west wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday Night: A 30 percent chance of rain before midnight. Cloudy, with a low around 38. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 40 mph.
Friday: Cloudy, with a high near 47. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night: Mostly cloudy, with a low around 37. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday: Partly sunny, with a high near 46.
Saturday Night: Mostly cloudy, with a low around 39.
Sunday: Mostly cloudy, with a high near 51.
Sunday Night: A chance of rain. Cloudy, with a low around 46.
Monday: A chance of rain. Mostly cloudy, with a high near 51.
Monday Night: Mostly cloudy, with a low around 31.
Tuesday: Mostly sunny, with a high near 39.
Tuesday Night: Mostly cloudy, with a low around 31.
Wednesday: Partly sunny, with a high near 38.

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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 Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain

Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

Graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail