Forecast Details for Altona, IL

Recent Locations: Inverness, CA Exeter, NE Altona, IL

Current Alerts for Altona, IL: Flood Warning

Today: Mostly sunny, with a high near 72. Breezy, with a south southwest wind 20 to 22 mph, with gusts as high as 33 mph.

Tonight: A chance of showers and thunderstorms. Increasing clouds, with a low around 51. South southwest wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

Thursday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 71. West southwest wind around 6 mph becoming northwest in the morning. Chance of precipitation is 10%.

Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 7pm. Low around 48. Light and variable wind becoming north northeast 5 to 8 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Friday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 61. North wind 8 to 10 mph, with gusts as high as 17 mph.

Friday Night: Partly cloudy, with a low around 41. East wind around 6 mph.

Saturday: Partly sunny, with a high near 65. East wind 6 to 11 mph, with gusts as high as 17 mph.

Saturday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 55.

Sunday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 77. Breezy.

Sunday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 63. Breezy. Chance of precipitation is 60%.

Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Breezy.

Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58.

Tuesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 71.

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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