Forecast Details for Long Valley, SD

Recent Locations: Alma, WI Pennock, MN Long Valley, SD

Today: A chance of rain before noon, then a chance of rain and snow between noon and 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 46. Breezy, with a southeast wind 21 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Tonight: Rain likely before 1am, then rain and snow likely between 1am and 2am, then rain likely after 2am. Cloudy, with a low around 32. Breezy, with an east wind 15 to 20 mph becoming northeast 9 to 14 mph after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.

Thursday: A chance of rain and snow before noon, then a slight chance of rain after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 51. North wind 8 to 16 mph becoming southeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Thursday Night: Rain. Low around 31. East wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

Friday: Rain and snow, becoming all snow after 4pm. Steady temperature around 36. Breezy, with a northeast wind 13 to 18 mph becoming north 20 to 25 mph in the afternoon. Winds could gust as high as 33 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 around 26 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 46. Breezy, with a northwest wind 20 to 29 mph, with gusts as high as 38 mph.

Saturday Night: Mostly clear, with a low around 29. Northwest wind 8 to 16 mph becoming west after midnight. Winds could gust as high as 22 mph.

Sunday: Sunny, with a high near 60.

Sunday Night: Mostly cloudy, with a low around 31.

Monday: Partly sunny, with a high near 48. Breezy.

Monday Night: A slight chance of rain and snow. Mostly cloudy, with a low around 27. Breezy.

Tuesday: Mostly sunny, with a high near 60. Breezy.

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

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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 Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation