Forecast Details for Fairmount, IL

Recent Locations: Flaxville, MT Arcata, CA Fairmount, IL

Tonight: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers after 4am. Low around 62. South southwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A 20 percent chance of showers between 3pm and 4pm. Cloudy through mid morning, then gradual clearing, with a high near 77. Southwest wind 11 to 17 mph, with gusts as high as 24 mph.

Thursday Night: Mostly clear, with a low around 53. West wind around 6 mph becoming calm in the evening.

Friday: Mostly sunny, with a high near 82. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 23 mph.

Friday Night: Showers and possibly a thunderstorm. Low around 53. South wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday: Showers likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 65. Breezy, with a west wind 16 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday Night: Partly cloudy, with a low around 38. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.

Sunday: Sunny, with a high near 57.

Sunday Night: Mostly clear, with a low around 36.

Monday: Sunny, with a high near 65.

Monday Night: Mostly clear, with a low around 49.

Tuesday: Mostly sunny, with a high near 75. Breezy.

Tuesday Night: Partly cloudy, with a low around 53.

Wednesday: Mostly sunny, with a high near 75.

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North America Water Vapor (Moisture)

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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