Forecast Details for Sioux Falls, SD

Recent Locations: Sioux Falls, SD  
Tonight: Mostly clear, with a low around 40. North wind around 5 mph becoming southeast after midnight.
Tuesday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 70. Southeast wind 10 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 41. West northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Wednesday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 65. Southwest wind around 10 mph becoming east southeast in the afternoon.
Wednesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 49. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 63. Breezy, with an east northeast wind 15 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Thursday Night: Mostly cloudy, with a low around 41.
Friday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 63.
Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 43.
Saturday: Mostly sunny, with a high near 63.
Saturday Night: Mostly clear, with a low around 43.
Sunday: Mostly sunny, with a high near 70.
Sunday Night: A 30 percent chance of showers. Partly cloudy, with a low around 50.
Monday: A 30 percent chance of showers. Mostly sunny, with a high near 73. Breezy.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow

Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Stratocumulus Clouds Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds