Forecast Details for Savoy, IL

Recent Locations: Lacon, IL Manteno, IL Savoy, IL

Current Alerts for Savoy, IL: Wind Advisory

This Afternoon: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 4pm. Cloudy, with a high near 51. East northeast wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Low around 47. East northeast wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 74. Windy, with a south wind 16 to 21 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Breezy, with a south wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 50%.

Friday: Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. South southwest wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and possibly a thunderstorm. Low around 57. South wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 64. South southwest wind 15 to 18 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35.

Sunday: Mostly sunny, with a high near 51. Breezy.

Sunday Night: Mostly clear, with a low around 32.

Monday: Sunny, with a high near 60.

Monday Night: Partly cloudy, with a low around 37.

Tuesday: Mostly sunny, with a high near 55.

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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)

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 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

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain