Forecast Details for Grass Range, MT

Recent Locations: Stateline, NV Butler, TN Grass Range, MT

Current Alerts for Grass Range, MT: Winter Weather Advisory

Overnight: Snow likely, mainly after 5am. Cloudy, with a low around 31. Northwest wind around 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

Friday: Snow likely, possibly mixing with rain after 1pm, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 45. Northwest wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday Night: Mostly clear, with a low around 30. Northwest wind 5 to 11 mph becoming southwest in the evening. Winds could gust as high as 18 mph.

Saturday: Sunny, with a high near 55. West northwest wind 9 to 18 mph, with gusts as high as 28 mph.

Saturday Night: Partly cloudy, with a low around 32. West northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 24 mph.

Sunday: Mostly sunny, with a high near 50. Light and variable wind becoming east northeast 5 to 9 mph in the morning.

Sunday Night: Mostly cloudy, with a low around 29. East northeast wind 5 to 10 mph.

Monday: Partly sunny, with a high near 52. East southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

Monday Night: Mostly cloudy, with a low around 35.

Tuesday: Mostly sunny, with a high near 68. Breezy.

Tuesday Night: A chance of rain and snow. Partly cloudy, with a low around 33.

Wednesday: A chance of snow. Partly sunny, with a high near 46. Breezy.

Wednesday Night: A chance of snow. Mostly cloudy, with a low around 24.

Thursday: A chance of snow. Partly sunny, with a high near 39.

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 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