Forecast Details for Box Elder, SD

Recent Locations: Ladoga, IN Seagraves, TX Box Elder, SD

Today: Sunny, with a high near 59. Wind chill values as low as 20 early. Calm wind becoming east around 6 mph in the afternoon.

Tonight: Mostly clear, with a low around 26. Southeast wind around 6 mph becoming southwest in the evening.

Sunday: Mostly sunny, with a high near 66. Southwest wind 6 to 14 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Sunday Night: Mostly clear, with a low around 26. Northwest wind around 5 mph becoming southwest after midnight.

Washington's Birthday: Mostly sunny, with a high near 63. Southwest wind 5 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 24 mph.

Monday Night: A 30 percent chance of snow after 5am. Partly cloudy, with a low around 34. South wind 7 to 9 mph.

Tuesday: A chance of snow before 8am, then a chance of rain. Partly sunny, with a high near 58. Breezy, with a south wind 10 to 15 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 40%.

Tuesday Night: A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 28. Northwest wind 13 to 18 mph, with gusts as high as 32 mph.

Wednesday: A slight chance of snow after 11am. Mostly sunny, with a high near 48.

Wednesday Night: A chance of snow. Mostly cloudy, with a low around 20.

Thursday: A chance of snow. Mostly cloudy, with a high near 40.

Thursday Night: A chance of snow. Partly cloudy, with a low around 16.

Friday: A slight chance of snow. Mostly sunny, with a high near 41.

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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

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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 Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

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