Forecast Details for Pomona, IL

Recent Locations: Sears, MI Buhl, ID Pomona, IL

Overnight: Partly cloudy, with a low around 64. South southwest wind around 10 mph, with gusts as high as 21 mph.

Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 83. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.

Wednesday Night: Partly cloudy, with a low around 67. South wind 8 to 14 mph, with gusts as high as 26 mph.

Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Breezy, with a south wind 16 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.

Thursday Night: Showers and possibly a thunderstorm. Low around 64. South southwest wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

Friday: Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

Saturday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 71. South wind 11 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

Saturday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 40. Northwest wind 11 to 13 mph, with gusts as high as 21 mph.

Sunday: Mostly sunny, with a high near 57. North northwest wind around 11 mph, with gusts as high as 21 mph.

Sunday Night: Mostly clear, with a low around 36. North wind 5 to 10 mph.

Monday: Sunny, with a high near 62. Northeast wind 5 to 7 mph.

Monday Night: Mostly clear, with a low around 40. East wind around 6 mph becoming south after midnight.

Tuesday: Sunny, with a high near 69. South wind 6 to 9 mph becoming north in the afternoon.

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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