Forecast Details for Niagara, WI

Recent Locations: Modale, IA Goodells, MI Niagara, WI

Current Alerts for Niagara, WI: Ice Storm Warning

Today: Cloudy, with a high near 39. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.

Tonight: Freezing rain before 4am, then rain and freezing rain, possibly mixed with sleet between 4am and 5am, then freezing rain, possibly mixed with sleet after 5am. Low around 29. East wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New ice accumulation of 0.3 to 0.5 of an inch possible. Little or no sleet accumulation expected.

Saturday: Rain or freezing rain, becoming all rain after 9am. High near 41. East wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New ice accumulation of less than a 0.1 of an inch possible.

Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 26. West wind 8 to 11 mph, with gusts as high as 24 mph.

Sunday: Partly sunny, with a high near 44. Northwest wind 10 to 14 mph, with gusts as high as 26 mph.

Sunday Night: Mostly cloudy, with a low around 26.

Monday: A 50 percent chance of snow. Partly sunny, with a high near 39.

Monday Night: Partly cloudy, with a low around 15.

Tuesday: Sunny, with a high near 40.

Tuesday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 25.

Wednesday: A chance of rain and snow. Partly sunny, with a high near 52. Chance of precipitation is 40%.

Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 35.

Thursday: A 30 percent chance of rain. Mostly cloudy, with a high near 49.

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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 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