Forecast Details for Hermosa, SD

Recent Locations: Georgetown, TN Rogers, TX Hermosa, SD

Today: A 30 percent chance of showers and thunderstorms, mainly between noon and 4pm. Mostly sunny, with a high near 72. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 51. Northeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

Labor Day: Patchy fog before 9am. Otherwise, sunny, with a high near 81. Northwest wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

Monday Night: Mostly clear, with a low around 56. Northeast wind 5 to 10 mph becoming southwest in the evening. Winds could gust as high as 15 mph.

Tuesday: Sunny, with a high near 85. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Tuesday Night: A chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Increasing clouds, with a low around 54. North wind 5 to 10 mph becoming northwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

Wednesday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 69. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

Wednesday Night: Partly cloudy, with a low around 45. Northeast wind 10 to 15 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

Thursday: Mostly sunny, with a high near 77.

Thursday Night: Mostly clear, with a low around 50.

Friday: Sunny, with a high near 76.

Friday Night: Mostly clear, with a low around 48.

Saturday: Sunny, with a high near 79.

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

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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 is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow