Forecast Details for Mellette, SD

Recent Locations: Sixes, OR Enterprise, MS Mellette, SD

Tonight: Mostly clear, with a low around 38. South wind 6 to 10 mph becoming north northeast after midnight.

Tuesday: Sunny, with a high near 77. North northeast wind 8 to 10 mph becoming southeast in the afternoon.

Tuesday Night: Mostly clear, with a low around 49. South southeast wind 10 to 13 mph, with gusts as high as 21 mph.

Wednesday: Mostly sunny and hot, with a high near 90. 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 57. Breezy, with a south wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers, mainly before 1pm. Mostly sunny, with a high near 73. Windy, with a south wind 21 to 30 mph becoming west southwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 30%.

Thursday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 36. Windy, with a west wind 23 to 31 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.

Friday: Partly sunny, with a high near 54. Breezy, with a west northwest wind 20 to 28 mph, with gusts as high as 38 mph.

Friday Night: Partly cloudy, with a low around 29. Blustery, with a west northwest wind 13 to 22 mph, with gusts as high as 30 mph.

Saturday: Mostly sunny, with a high near 52. Breezy.

Saturday Night: Partly cloudy, with a low around 27.

Sunday: A slight chance of showers. Mostly sunny, with a high near 54. Chance of precipitation is 20%.

Sunday Night: A slight chance of rain and snow showers. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.

Monday: A slight chance of rain and snow showers. Partly sunny, with a high near 54. Chance of precipitation is 20%.

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North America Water Vapor (Moisture)

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle