Forecast Details for Allerton, IA

Recent Locations: Normalville, PA Matlock, IA Allerton, IA

Current Alerts for Allerton, IA: Winter Weather Advisory

Tonight: Snow showers, possibly mixed with rain, becoming all snow after 3am. The snow could be heavy at times. Low around 29. North northeast wind around 10 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.

Tuesday: Rain showers, snow showers, freezing rain, and sleet before 1pm, then a chance of rain showers. The snow could be heavy at times. High near 38. Breezy, with an east southeast wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow and sleet accumulation of less than one inch possible.

Tuesday Night: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a temperature rising to around 41 by 4am. Breezy, with an east southeast wind 14 to 20 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: A 30 percent chance of showers, mainly between 1pm and 4pm. Mostly sunny, with a high near 70. Windy, with a south wind 21 to 29 mph, with gusts as high as 38 mph.

Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 47. Breezy, with a south southwest wind 8 to 17 mph, with gusts as high as 26 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: Showers and possibly a thunderstorm. Low around 46. Chance of precipitation is 80%.

Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 60.

Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 45.

Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 69.

Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55. Breezy.

Sunday: Showers likely. Mostly cloudy, with a high near 74. Windy. Chance of precipitation is 70%.

Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Windy. Chance of precipitation is 60%.

Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. Windy.

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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)

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Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

Graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail

Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds