Forecast Details for Hermosa, SD

Recent Locations: North Manchester, IN Akers, LA Hermosa, SD

Current Alerts for Hermosa, SD: Wind Advisory

Tonight: Mostly clear, with a low around 43. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 45 mph.

Friday: Sunny, with a high near 68. North wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

Friday Night: Mostly clear, with a low around 39. North wind 10 to 15 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

Saturday: Sunny, with a high near 69. Light and variable wind becoming northeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

Saturday Night: Mostly clear, with a low around 40. Northeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

Sunday: Sunny, with a high near 78. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

Sunday Night: Partly cloudy, with a low around 54. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

Monday: Mostly sunny, with a high near 85. West wind around 5 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

Monday Night: Partly cloudy, with a low around 57.

Tuesday: Mostly sunny, with a high near 87.

Tuesday Night: Partly cloudy, with a low around 58.

Wednesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.

Wednesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 61.

Thursday: A slight chance of showers. Mostly sunny, with a high near 87.

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)

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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