Forecast Details for Winchester, ID

Recent Locations: Winchester, ID

Tonight: Mostly clear, with a low around 56. Northwest wind 5 to 7 mph becoming southwest after midnight.

Sunday: A slight chance of thunderstorms after 5pm. Increasing clouds, with a high near 82. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 10%.

Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 55. West wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 71. Northwest wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 51. West wind 5 to 8 mph becoming south in the evening.

Tuesday: Mostly sunny, with a high near 78.

Tuesday Night: Partly cloudy, with a low around 55.

Wednesday: Partly sunny, with a high near 77.

Wednesday Night: Mostly cloudy, with a low around 55.

Thursday: A 20 percent chance of showers. Partly sunny, with a high near 73.

Thursday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54.

Friday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74.

Friday Night: Partly cloudy, with a low around 53.

Saturday: Sunny, with a high near 79.

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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