Forecast Details for Chicago, IL

Recent Locations: Chicago, IL  
Current Alerts for Chicago, IL: Lakeshore Flood Advisory Winter Storm Warning
Overnight: A slight chance of flurries. Cloudy, with a low around 30. North northeast wind around 10 mph.
Monday: Snow, mainly after 4pm. High near 32. Breezy, with an east northeast wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night: Snow. The snow could be heavy at times. Low around 31. Windy, with an east northeast wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Tuesday: Snow. High near 33. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night: A 50 percent chance of snow showers. Cloudy, with a low around 26. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday: Snow showers likely, mainly before noon. Mostly cloudy, with a high near 30. Chance of precipitation is 60%.
Wednesday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 15.
Thursday: Mostly sunny, with a high near 26.
Thursday Night: Partly cloudy, with a low around 13.
Friday: Mostly sunny, with a high near 30.
Friday Night: Mostly cloudy, with a low around 24.
Saturday: A chance of rain and snow. Mostly cloudy, with a high near 37.
Saturday Night: Rain and snow likely. Cloudy, with a low around 32.
Sunday: A chance of rain and snow. Mostly cloudy, with a high near 37.

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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

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Today's National Weather Map

National Weather Forecast for Tomorrow

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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 Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog