Forecast Details for Eureka, SD

Recent Locations: Eureka, SD

This Afternoon: A slight chance of showers and thunderstorms. Partly sunny, with a high near 67. East northeast wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Tonight: Partly cloudy, with a low around 44. East wind 8 to 13 mph becoming light after midnight.

Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 72. Calm wind becoming south southwest around 6 mph in the afternoon.

Thursday Night: Mostly clear, with a low around 47. Southwest wind around 6 mph.

Friday: Sunny, with a high near 79. West southwest wind 6 to 13 mph.

Friday Night: Mostly clear, with a low around 54. West wind 9 to 11 mph.

Saturday: Sunny, with a high near 82. Northwest wind 13 to 17 mph.

Saturday Night: Mostly clear, with a low around 54. North northwest wind 5 to 13 mph becoming south southeast after midnight.

Sunday: Sunny, with a high near 86. Breezy, with a south wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon.

Sunday Night: Mostly clear, with a low around 60.

Monday: A chance of showers. Mostly sunny, with a high near 86. Breezy. Chance of precipitation is 30%.

Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Breezy. Chance of precipitation is 70%.

Tuesday: Showers likely. Partly sunny, with a high near 74. Breezy. Chance of precipitation is 60%.

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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