Forecast Details for Herreid, SD

Recent Locations: Almyra, AR Hampton, AR Herreid, SD

Tonight: Partly cloudy, with a low around 29. South southwest wind 5 to 10 mph becoming southeast after midnight.

Sunday: Showers likely, mainly after 5pm. Increasing clouds, with a high near 55. East southeast wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night: Showers. Low around 36. Breezy, with an east northeast wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Monday: Showers likely, mainly before 1pm. Cloudy, with a high near 48. Windy, with a north wind 22 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Monday Night: Partly cloudy, with a low around 28. Blustery, with a north northwest wind 18 to 23 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 33 mph.

Tuesday: Partly sunny, with a high near 53. North northwest wind 7 to 11 mph.

Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 32. West northwest wind 5 to 9 mph becoming light and variable in the evening. Chance of precipitation is 20%.

Wednesday: A chance of showers, mainly before 1pm. Mostly sunny, with a high near 58. Light and variable wind becoming north northwest 8 to 13 mph in the morning. Chance of precipitation is 30%.

Wednesday Night: Partly cloudy, with a low around 31. North wind 9 to 14 mph becoming light north northeast after midnight.

Thursday: A slight chance of showers before 1pm. Mostly sunny, with a high near 56. Chance of precipitation is 20%.

Thursday Night: Partly cloudy, with a low around 31.

Friday: Sunny, with a high near 63.

Friday Night: Partly cloudy, with a low around 37.

Saturday: Mostly sunny, with a high near 68.

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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 are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds