Forecast Details for Harvey, IL

Recent Locations: Kodak, TN Wilder, VT Harvey, IL

Tonight: Mostly cloudy, with a low around 19. Calm wind becoming south around 5 mph after midnight.

Tuesday: A 30 percent chance of light rain with a slight chance of showers after 4pm. Mostly cloudy, with a high near 42. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.

Tuesday Night: A chance of showers or light rain before 7pm, then a chance of light rain with a slight chance of showers between 7pm and 8pm. Cloudy during the early evening, then gradual clearing, with a low around 26. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Wednesday: Sunny, with a high near 36. West northwest wind 5 to 15 mph.

Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 26. West northwest wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.

Thursday: A 30 percent chance of snow before noon. Mostly sunny, with a high near 39.

Thursday Night: Mostly clear, with a low around 28.

Friday: Sunny, with a high near 54.

Friday Night: Partly cloudy, with a low around 34.

Saturday: Partly sunny, with a high near 44.

Saturday Night: Mostly cloudy, with a low around 24.

Sunday: A chance of snow. Partly sunny, with a high near 34.

Sunday Night: A chance of snow. Mostly cloudy, with a low around 22.

Monday: A chance of snow. Mostly cloudy, with a high near 34.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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 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

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - 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