Forecast Details for Sioux Falls, SD

Recent Locations: Beaverton, OR Granite Bay, CA Sioux Falls, SD

Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 30. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

Tuesday: Sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Tuesday Night: Mostly clear, with a low around 24. Northwest wind around 5 mph becoming calm in the evening.

Wednesday: Partly sunny, with a high near 48. Light southeast wind becoming south 5 to 10 mph in the morning.

Wednesday Night: A slight chance of rain before midnight, then a chance of rain and snow. Cloudy, with a low around 34. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

Thursday: A slight chance of rain and snow before noon. Cloudy through mid morning, then gradual clearing, with a high near 49. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.

Thursday Night: Mostly clear, with a low around 27.

Friday: Sunny, with a high near 50.

Friday Night: Mostly clear, with a low around 31.

Saturday: A 20 percent chance of rain. Mostly sunny, with a high near 51.

Saturday Night: Partly cloudy, with a low around 30.

Sunday: Mostly sunny, with a high near 53.

Sunday Night: Mostly cloudy, with a low around 35.

Washington's Birthday: Mostly cloudy, with a high near 53.

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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 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

Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds