Forecast Details for Chicago O'Hare International Airport, IL

Recent Locations: Chengdu, Chicago O'Hare International Airport, IL

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Tonight: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Steady temperature around 56. Breezy, with an east wind around 20 mph becoming south southwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Mostly cloudy, with a high near 55. Breezy, with a west wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

Monday Night: Mostly clear, with a low around 42. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

Tuesday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 64. West wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 15 mph.

Tuesday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 50. East southeast wind 5 to 10 mph becoming south southwest after midnight. Chance of precipitation is 50%.

Wednesday: Mostly sunny, with a high near 71.

Wednesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.

Thursday: A chance of showers after 1pm. Partly sunny, with a high near 72.

Thursday Night: A chance of showers. Mostly cloudy, with a low around 56.

Friday: A chance of showers. Mostly cloudy, with a high near 71.

Friday Night: A chance of showers. Mostly cloudy, with a low around 46.

Saturday: Mostly sunny, with a high near 57.

Saturday Night: Partly cloudy, with a low around 44.

Sunday: Mostly sunny, with a high near 61.

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Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - 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