Forecast Details for Allegan, MI

Recent Locations: Allegan, MI  
Overnight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 61. East wind around 6 mph.
Thursday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. East wind around 6 mph becoming calm in the morning.
Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Light north northeast wind.
Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming east northeast around 6 mph in the afternoon. Chance of precipitation is 30%.
Friday Night: A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 57. East northeast wind 3 to 6 mph.
Saturday: Sunny, with a high near 82.
Saturday Night: Clear, with a low around 53.
Sunday: Sunny, with a high near 82.
Sunday Night: Mostly clear, with a low around 59.
Monday: Mostly sunny, with a high near 84.
Monday Night: A chance of showers. Partly cloudy, with a low around 64.
Tuesday: Sunny, with a high near 81.
Tuesday Night: Mostly clear, with a low around 61.
Wednesday: Sunny, with a high near 80.

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Current U.S. National Radar--Current

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Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

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.

North American Water Vapor Map

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

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