Forecast Details for Markesan, WI

Recent Locations: Hatton, ND Watson, LA Markesan, WI

Current Alerts for Markesan, WI: Winter Storm Watch Winter Weather Advisory

Tonight: Partly cloudy, with a low around 24. Northwest wind 5 to 10 mph.

Saturday: A 30 percent chance of snow, mainly after 4pm. Cloudy, with a high near 38. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

Saturday Night: Snow, freezing rain, and sleet before 3am, then rain, snow, freezing rain, and sleet likely between 3am and 4am, then rain, snow, and freezing rain likely after 4am. Patchy blowing snow between 1am and 2am. Low around 28. Breezy, with an east wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 1 to 2 inches possible.

Sunday: Rain before 1pm, then rain, possibly mixed with snow between 1pm and 4pm, then rain, snow, freezing rain, and sleet after 4pm. High near 37. Windy, with an east wind 20 to 25 mph becoming northeast in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

Sunday Night: Snow, freezing rain, and sleet, becoming all snow after 10pm. The snow could be heavy at times. Widespread blowing snow after 10pm. Low around 16. Windy, with a north wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 4 to 6 inches possible.

Monday: Snow likely, mainly before 1pm. Widespread blowing snow, mainly before 1pm. Cloudy, with a high near 19. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 2. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Tuesday: Mostly sunny, with a high near 22. West wind around 10 mph.

Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 12.

Wednesday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 39.

Wednesday Night: Partly cloudy, with a low around 28.

Thursday: Mostly sunny, with a high near 45.

Thursday Night: Mostly cloudy, with a low around 26.

Friday: Mostly cloudy, with a high near 46.

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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