Forecast Details for Harvey, IL

Recent Locations: Corry, PA   Woolwine, VA   Harvey, IL  
Tonight: Scattered rain and snow showers, mainly between 7pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 27. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Wednesday: Sunny, with a high near 36. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night: Partly cloudy, with a low around 23. West northwest wind around 5 mph becoming north northeast after midnight.
Thursday: Mostly sunny, with a high near 42. North northeast wind around 5 mph becoming south southwest in the afternoon.
Thursday Night: Mostly clear, with a low around 29. Southwest wind around 5 mph, with gusts as high as 15 mph.
Friday: Sunny, with a high near 57.
Friday Night: Mostly clear, with a low around 33.
Saturday: A chance of snow after noon. Partly sunny, with a high near 42.
Saturday Night: Mostly cloudy, with a low around 25.
Sunday: A chance of snow after noon. Partly sunny, with a high near 33.
Sunday Night: A chance of snow. Mostly cloudy, with a low around 22.
Monday: Partly sunny, with a high near 34.
Monday Night: A chance of snow. Mostly cloudy, with a low around 26.
Tuesday: A chance of rain and snow. Mostly cloudy, with a high near 40.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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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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