Forecast Details for Trevor, WI

Recent Locations: Heisson, WA Gordon, AL Trevor, WI

Tonight: Showers and possibly a thunderstorm. Low around 39. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and 10am. Cloudy, with a high near 57. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.

Saturday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 33. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 51. West wind around 15 mph, with gusts as high as 25 mph.

Sunday Night: Partly cloudy, with a low around 35. West wind around 5 mph.

Monday: Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Monday Night: Mostly clear, with a low around 23. North wind 5 to 10 mph.

Tuesday: Sunny, with a high near 41. North wind around 5 mph becoming southeast in the afternoon.

Tuesday Night: A slight chance of snow showers after 1am, mixing with rain after 4am. Increasing clouds, with a low around 29. Chance of precipitation is 20%.

Wednesday: A slight chance of rain and snow showers before 10am, then a slight chance of rain showers. Partly sunny, with a high near 63. Chance of precipitation is 20%.

Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 47.

Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 63.

Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 43.

Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 57.

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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 are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds