Forecast Details for Saint Marie, MT

Recent Locations: Pleasantville, NJ Molino, FL Saint Marie, MT

Current Alerts for Saint Marie, MT: Lake Wind Advisory

Tonight: Mostly cloudy, with a low around 24. East southeast wind 18 to 20 mph, with gusts as high as 26 mph.

Wednesday: Mostly sunny, with a high near 41. East southeast wind 16 to 18 mph, with gusts as high as 23 mph.

Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26. East southeast wind 18 to 20 mph, with gusts as high as 25 mph.

Thursday: A chance of snow before 3pm, then a chance of rain and snow. Cloudy, with a high near 38. Breezy, with an east wind around 22 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Thursday Night: Rain and snow, becoming all snow after 9pm. Low around 25. East wind 14 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 36. Northeast wind 8 to 11 mph becoming north northwest in the afternoon. New snow accumulation of less than a half inch possible.

Friday Night: Mostly cloudy, with a low around 24. North northwest wind 6 to 8 mph becoming south after midnight.

Saturday: Mostly sunny, with a high near 49. South southeast wind 6 to 9 mph becoming west southwest in the afternoon.

Saturday Night: Partly cloudy, with a low around 30. West wind 7 to 10 mph becoming southeast in the evening.

Sunday: Partly sunny, with a high near 55. South southeast wind 7 to 15 mph becoming west in the afternoon.

Sunday Night: Mostly cloudy, with a low around 30. Northwest wind 13 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

Monday: Partly sunny, with a high near 49.

Monday Night: Mostly cloudy, with a low around 29.

Tuesday: Partly sunny, with a high near 56.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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 Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

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