Forecast Details for Chicago O'Hare International Airport, IL

Recent Locations: Chicago O'Hare International Airport, IL

Today: Mostly cloudy, then gradually becoming sunny, with a high near 76. Northeast wind around 10 mph, with gusts as high as 15 mph.

Tonight: Partly cloudy, with a low around 59. North northeast wind 5 to 10 mph.

Sunday: Mostly sunny, with a high near 81. East northeast wind 5 to 10 mph.

Sunday Night: Partly cloudy, with a low around 63. East wind around 5 mph, with gusts as high as 10 mph.

Monday: A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 84. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.

Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67.

Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69.

Wednesday: Showers and thunderstorms. Mostly cloudy, with a high near 84.

Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 66.

Juneteenth: Mostly sunny, with a high near 82.

Thursday Night: Mostly clear, with a low around 64.

Friday: Mostly sunny, with a high near 83.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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

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.

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds