Forecast Details for Spring Valley, WI

Recent Locations: Cheyenne, WY Rueter, MO Spring Valley, WI

Today: A chance of snow showers before 4pm, then rain and snow showers likely between 4pm and 5pm, then a chance of snow showers after 5pm. Cloudy, with a high near 38. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Tonight: A chance of rain and snow showers before 8pm, then a slight chance of snow showers between 8pm and 9pm. Mostly cloudy, with a low around 30. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

Sunday: A 30 percent chance of showers, mainly between 3pm and 5pm. Mostly sunny, with a high near 48. West wind 10 to 15 mph.

Sunday Night: Mostly cloudy, with a low around 29. West northwest wind 10 to 15 mph.

Monday: Mostly cloudy, then gradually becoming sunny, with a high near 39. Northwest wind around 15 mph, with gusts as high as 25 mph.

Monday Night: Mostly clear, with a low around 17. North northwest wind 5 to 10 mph becoming light north after midnight.

Tuesday: Mostly sunny, with a high near 43. Light east southeast wind becoming south 5 to 10 mph in the morning.

Tuesday Night: A chance of snow showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of rain showers after 4am. Mostly cloudy, with a low around 32. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

Wednesday: A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 62. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.

Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 38. West wind 10 to 15 mph, with gusts as high as 25 mph.

Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 53. West northwest wind around 10 mph becoming north in the afternoon.

Thursday Night: A chance of rain and snow showers. Mostly cloudy, with a low around 35. East wind around 10 mph. Chance of precipitation is 40%.

Friday: Rain and snow showers likely. Mostly cloudy, with a high near 50. East wind around 10 mph. Chance of precipitation is 60%.

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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