Forecast Details for Chicago, IL

Recent Locations: Chicago, IL  
This Afternoon: Sunny, with a high near 51. East northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight: Mostly clear, with a low around 43. East southeast wind 5 to 10 mph.
Friday: Showers likely after 1pm. Increasing clouds, with a high near 56. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night: Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Low around 55. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. Breezy, with a south southwest wind around 20 mph, with gusts as high as 30 mph.
Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Breezy.
Sunday Night: Showers and thunderstorms. Mostly cloudy, with a low around 62. Breezy.
Monday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 73.
Monday Night: A chance of showers before 1am. Mostly cloudy, with a low around 53.
Tuesday: Sunny, with a high near 74.
Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 73.

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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 Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Stratocumulus Clouds Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds