Forecast Details for Mellette, SD

Recent Locations: Cardwell, MT Tokio, ND Mellette, SD

This Afternoon: Mostly sunny, with a high near 73. Breezy, with a south wind 23 to 28 mph decreasing to 17 to 22 mph.

Tonight: Partly cloudy, with a low around 38. South southwest wind 6 to 9 mph becoming north northeast after midnight.

Tuesday: Sunny, with a high near 78. North northeast wind 8 to 10 mph becoming southeast in the afternoon.

Tuesday Night: Mostly clear, with a low around 50. South southeast wind 10 to 14 mph.

Wednesday: Mostly sunny, with a high near 89. Breezy, with a south wind 14 to 19 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 38 mph.

Wednesday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 56. Breezy, with a south wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers. Mostly sunny, with a high near 72. Windy, with a south wind 21 to 26 mph becoming west southwest 28 to 33 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 40%.

Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 35. Windy, with a west wind 25 to 32 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.

Friday: Partly sunny, with a high near 54. Breezy, with a west northwest wind 23 to 29 mph, with gusts as high as 39 mph.

Friday Night: Partly cloudy, with a low around 29. Blustery.

Saturday: Mostly sunny, with a high near 53. Breezy.

Saturday Night: Mostly cloudy, with a low around 28.

Sunday: A slight chance of rain and snow showers. Mostly sunny, with a high near 55. 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)

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Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain