Forecast Details for Patterson, IL

Recent Locations: Victoria, MS Patterson, IL

Current Alerts for Patterson, IL: Wind Advisory

Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 55. Southeast wind around 13 mph, with gusts as high as 23 mph.

Thursday: Showers and thunderstorms, mainly before 5pm. High near 74. Breezy, with a south wind 15 to 23 mph, with gusts as high as 44 mph. Chance of precipitation is 80%.

Thursday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Partly cloudy, with a low around 55. South wind 13 to 18 mph becoming west 6 to 11 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%.

Friday: A chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. East wind 5 to 14 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

Friday Night: Showers and possibly a thunderstorm. Low around 53. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.

Saturday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 40%.

Saturday Night: Partly cloudy, with a low around 36.

Sunday: Sunny, with a high near 55.

Sunday Night: Clear, with a low around 36.

Monday: Sunny, with a high near 61.

Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 35.

Tuesday: Mostly sunny, with a high near 57.

Tuesday Night: Partly cloudy, with a low around 38.

Wednesday: Mostly sunny, with a high near 68.

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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