Forecast Details for Shannon, IL

Recent Locations: Quechee, VT Mapleton, ND Shannon, IL

This Afternoon: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 55. East wind 5 to 10 mph.

Tonight: Showers and thunderstorms before 4am, then a slight chance of showers. Low around 43. Breezy, with an east wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday: Mostly cloudy, with a temperature falling to around 45 by 5pm. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

Saturday Night: Mostly cloudy, with a low around 33. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

Sunday: Mostly sunny, with a high near 52.

Sunday Night: Partly cloudy, with a low around 33.

Monday: Mostly sunny, with a high near 49.

Monday Night: Mostly clear, with a low around 23.

Tuesday: Mostly sunny, with a high near 46.

Tuesday Night: A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

Wednesday: Partly sunny, with a high near 64. Breezy.

Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 46. Breezy.

Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 63.

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

Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What is Hail?

Home - Education - Precipitation - Hail

Hail Next Topic: Hole Punch Clouds

Hail is a form of precipitation which is recognized by large solid balls or clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind. As the hailstones remain in the updraft, ice is deposited onto them until their weight becomes heavy enough for them to fall to the earth's surface.

Hail storms can cause significant damage to crops, aircrafts, and man-made structures, despite the fact that the duration is usually less than ten minutes.

Next Topic: Hole Punch Clouds

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds