Forecast Details for Sisseton, SD

Recent Locations: Tracy, CA Taneyville, MO Sisseton, SD

This Afternoon: A chance of snow before 4pm, then a chance of rain and snow. Cloudy, with a high near 38. East southeast wind around 15 mph. Chance of precipitation is 40%.

Tonight: Rain and snow, becoming all snow after 4am. Patchy blowing snow after 2am. Low around 29. East wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Thursday: Snow. High near 33. East northeast wind 14 to 16 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Thursday Night: A chance of snow before 1am, then a chance of snow and freezing rain between 1am and 4am, then a chance of snow, freezing rain, and sleet after 4am. Cloudy, with a low around 26. North northeast wind 8 to 11 mph. Chance of precipitation is 40%.

Friday: Snow, possibly mixed with freezing rain and sleet, becoming all snow after 4pm. High near 33. Northeast wind 10 to 13 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 1 to 2 inches possible.

Friday Night: Snow. Low around 29. North wind 11 to 14 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Saturday: Snow, mainly before 1pm. Patchy blowing snow before 4pm. High near 35. Breezy, with a northwest wind 18 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.

Saturday Night: Patchy blowing snow between 7pm and 1am. Partly cloudy, with a low around 21. Blustery, with a west northwest wind 14 to 22 mph, with gusts as high as 30 mph.

Sunday: Sunny, with a high near 40. West wind 11 to 16 mph.

Sunday Night: Mostly cloudy, with a low around 25.

Monday: A slight chance of snow. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.

Monday Night: Partly cloudy, with a low around 15.

Tuesday: Partly sunny, with a high near 39. Breezy.

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North America Water Vapor (Moisture)

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

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