Forecast Details for Saint Marie, MT

Recent Locations: Sun City West, AZ Saint Marie, MT

Current Alerts for Saint Marie, MT: Air Quality Alert

Tonight: Areas of smoke after midnight. Mostly clear, with a low around 46. North northeast wind 7 to 13 mph, with gusts as high as 18 mph.

Wednesday: Areas of smoke before 5pm. Mostly sunny, with a high near 71. Northeast wind around 6 mph becoming light and variable.

Wednesday Night: Areas of smoke between 2am and 5am. Mostly cloudy, with a low around 52. South wind 5 to 10 mph.

Thursday: Sunny, with a high near 67. Breezy, with a north northwest wind 20 to 28 mph, with gusts as high as 41 mph.

Thursday Night: Mostly clear, with a low around 38. Breezy, with a north northwest wind 18 to 23 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 38 mph.

Friday: Sunny, with a high near 65. North northwest wind 8 to 10 mph.

Friday Night: Mostly clear, with a low around 38. North northwest wind 6 to 9 mph becoming east after midnight.

Saturday: Sunny, with a high near 70. East wind 6 to 10 mph.

Saturday Night: Mostly clear, with a low around 43. East southeast wind around 11 mph, with gusts as high as 18 mph.

Sunday: Sunny, with a high near 78. East wind around 10 mph becoming south in the afternoon.

Sunday Night: Partly cloudy, with a low around 50. South wind 7 to 10 mph becoming northeast after midnight.

Monday: Mostly sunny, with a high near 80.

Monday Night: Partly cloudy, with a low around 51.

Tuesday: Mostly sunny, with a high near 79.

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

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

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