Forecast Details for Sioux Falls, SD

Recent Locations: Elk Grove, CA Denver, CO Sioux Falls, SD

Overnight: Mostly cloudy, with a steady temperature around 32. South southeast wind around 5 mph.

Monday: Partly sunny, with a high near 58. Southeast wind 5 to 10 mph becoming northwest in the afternoon.

Monday Night: Mostly cloudy, with a low around 30. North wind 5 to 15 mph, with gusts as high as 25 mph.

Tuesday: Mostly sunny, with a high near 47. Northwest wind 5 to 10 mph.

Tuesday Night: Partly cloudy, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.

Wednesday: Mostly cloudy, with a high near 46. Light east southeast wind becoming south southeast 5 to 10 mph in the morning.

Wednesday Night: Rain and snow likely, mainly after midnight. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.

Thursday: A chance of snow before noon, then a chance of rain. Partly sunny, with a high near 46. Chance of precipitation is 40%.

Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 28.

Friday: Mostly sunny, with a high near 45.

Friday Night: A 20 percent chance of rain. Partly cloudy, with a low around 29.

Saturday: A 20 percent chance of rain. Mostly sunny, with a high near 47.

Saturday Night: Partly cloudy, with a low around 28.

Sunday: Partly sunny, with a high near 47.

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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

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

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