Forecast Details for Long Valley, SD

Recent Locations: Palmer, NE Spicewood, TX Long Valley, SD

Current Alerts for Long Valley, SD: Special Weather Statement

Overnight: A 50 percent chance of snow. Cloudy, with a low around 31. Wind chill values as low as 18. Breezy, with a southeast wind 24 to 26 mph, with gusts as high as 40 mph. Little or no snow accumulation expected.

Wednesday: A chance of snow before 11am, then rain. High near 46. Wind chill values as low as 19 early. Breezy, with a southeast wind 24 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Wednesday Night: Rain and snow, possibly mixed with freezing rain before 1am, then rain, possibly mixed with freezing rain between 1am and 2am, then rain and snow, possibly mixed with freezing rain after 2am. Low around 32. Breezy, with a southeast wind 17 to 22 mph becoming northeast 10 to 15 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Little or no snow accumulation expected.

Thursday: Rain and snow likely, possibly mixed with freezing rain before 8am, then rain and snow likely between 8am and 10am, then rain likely after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 53. Breezy, with a northeast wind 9 to 14 mph becoming east 15 to 20 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. Little or no snow accumulation expected.

Thursday Night: Rain. Low around 31. Breezy, with an east wind 15 to 21 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

Friday: Rain and snow, becoming all snow after 4pm. High near 42. Breezy, with a northeast wind 15 to 23 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Friday Night: Snow, mainly before midnight. Low around 26. Blustery, with a northwest wind 22 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 80%.

Saturday: A slight chance of snow before noon. Partly sunny, with a high near 46. Breezy, with a northwest wind 22 to 29 mph, with gusts as high as 38 mph.

Saturday Night: Mostly clear, with a low around 26. Blustery.

Sunday: Sunny, with a high near 65.

Sunday Night: Partly cloudy, with a low around 33.

Monday: Partly sunny, with a high near 55. Breezy.

Monday Night: Mostly cloudy, with a low around 29. Blustery.

Tuesday: Mostly sunny, with a high near 63. Breezy.

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

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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 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

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails