Forecast Details for Sioux Falls, SD

Recent Locations: Minonk, IL Cape Vincent, NY Sioux Falls, SD

This Afternoon: Snow likely, mainly before 3pm. Widespread blowing snow, mainly before 4pm. Cloudy, with a high near 26. Very windy, with a north northwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. Total daytime snow accumulation of around an inch possible.

Tonight: Areas of blowing snow. Cloudy during the early evening, then gradual clearing, with a low around -2. Wind chill values as low as -23. Windy, with a north northwest wind 20 to 30 mph, with gusts as high as 45 mph.

Monday: Patchy blowing snow before 9am. Sunny, with a high near 14. Wind chill values as low as -23. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Monday Night: Partly cloudy, with a low around -3. Northwest wind 5 to 10 mph becoming light and variable in the evening.

Tuesday: A chance of snow between 1pm and 4pm, then a chance of rain and sleet after 4pm. Mostly cloudy, with a high near 33. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%. New snow and sleet accumulation of less than a half inch possible.

Tuesday Night: A chance of rain and sleet before 10pm, then a slight chance of snow between 10pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 25. South wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

Wednesday: Mostly sunny, with a high near 53.

Wednesday Night: Mostly cloudy, with a low around 36.

Thursday: Mostly sunny, with a high near 66.

Thursday Night: Partly cloudy, with a low around 42.

Friday: Partly sunny, with a high near 71.

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

Saturday: Mostly sunny, with a high near 64.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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 Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds