Forecast Details for Chicago O'Hare International Airport, IL

Recent Locations: Chicago O'Hare International Airport, IL  
Current Alerts for Chicago O'Hare International Airport, IL: Air Quality Alert Beach Hazards Statement
Tonight: Mostly cloudy, with a low around 67. West southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph.
Thursday: Mostly cloudy, with a high near 74. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night: Partly cloudy, with a low around 62. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday: Mostly sunny, with a high near 81. East wind 5 to 10 mph.
Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Saturday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
Saturday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Sunday: Mostly cloudy, with a high near 80.
Sunday Night: A chance of showers after 1am. Mostly cloudy, with a low around 68.
Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Tuesday: Partly sunny, with a high near 91.
Tuesday Night: Mostly clear, with a low around 75.
Wednesday: Sunny and hot, with a high near 95.

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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

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