Forecast Details for Big Sky, MT

Recent Locations: Kawkawlin, MI Shiner, TX Big Sky, MT

Current Alerts for Big Sky, MT: Winter Storm Warning Winter Weather Advisory

Tonight: Snow. The snow could be heavy at times. Low around 25. West southwest wind 6 to 11 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 6 to 10 inches possible.

Thursday: Snow before noon, then snow showers, mainly after noon. The snow could be heavy at times. Some thunder is also possible. High near 29. West northwest wind 6 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Thursday Night: Snow, mainly before midnight. Low around 16. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday: Snow. High near 27. Calm wind becoming northwest around 6 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Friday Night: A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 10. North northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph. New snow accumulation of less than a half inch possible.

Saturday: A 30 percent chance of snow. Partly sunny, with a high near 34. Calm wind becoming west northwest around 5 mph in the afternoon. Little or no snow accumulation expected.

Saturday Night: A 20 percent chance of snow after midnight. Partly cloudy, with a low around 16. Light and variable wind.

Sunday: A chance of snow. Partly sunny, with a high near 33. Calm wind becoming north northwest around 5 mph in the afternoon.

Sunday Night: A chance of snow. Mostly cloudy, with a low around 19.

Monday: Snow likely, mainly after noon. Mostly cloudy, with a high near 38.

Monday Night: A slight chance of snow. Partly cloudy, with a low around 23.

Tuesday: A chance of snow. Partly sunny, with a high near 42.

Tuesday Night: A slight chance of snow. Partly cloudy, with a low around 26.

Wednesday: A chance of snow. Mostly sunny, with a high near 44.

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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