Forecast Details for Mellette, SD

Recent Locations: Winfield, AL Butte, MT Mellette, SD

Current Alerts for Mellette, SD: Wind Advisory

Today: Sunny, with a high near 73. Windy, with a west wind 11 to 21 mph increasing to 22 to 32 mph in the afternoon.

Tonight: Partly cloudy, with a low around 34. Windy, with a west northwest wind 25 to 30 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 40 mph.

Friday: Partly sunny, with a high near 57. West wind 10 to 13 mph.

Friday Night: A chance of showers, mainly after 1am. Increasing clouds, with a low around 34. West southwest wind 7 to 10 mph. Chance of precipitation is 30%.

Saturday: A chance of showers. Partly sunny, with a high near 53. West southwest wind 7 to 10 mph becoming north in the afternoon. Chance of precipitation is 40%.

Saturday Night: A slight chance of showers. Mostly cloudy, with a low around 37. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.

Sunday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. East wind 10 to 17 mph. Chance of precipitation is 60%.

Sunday Night: Showers likely. Cloudy, with a low around 37. Northeast wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 53. Breezy, with a north northwest wind 21 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.

Monday Night: A chance of showers before 1am. Mostly cloudy, with a low around 30. Blustery. Chance of precipitation is 30%.

Tuesday: Mostly sunny, with a high near 55.

Tuesday Night: Partly cloudy, with a low around 31.

Wednesday: A slight chance of showers. Mostly sunny, with a high near 58. Chance of precipitation is 20%.

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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 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

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds