Forecast Details for Great Falls, MT

Recent Locations: Henrico, NC Cornell, WI Great Falls, MT

Current Alerts for Great Falls, MT: High Wind Watch

Tonight: Mostly clear, with a low around 29. West northwest wind 6 to 11 mph becoming light and variable in the evening.

Sunday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 52. Light north northeast wind becoming east northeast 5 to 10 mph in the afternoon.

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

Monday: Partly sunny, with a high near 58. Calm wind becoming east around 5 mph in the afternoon.

Monday Night: Mostly cloudy, with a low around 42. Light and variable wind becoming south southwest 5 to 10 mph after midnight.

Tuesday: Mostly sunny, with a high near 66. Windy, with a south southwest wind 15 to 20 mph increasing to 28 to 33 mph in the afternoon. Winds could gust as high as 50 mph.

Tuesday Night: A chance of rain before 9pm, then a chance of rain and snow between 9pm and 3am, then a slight chance of snow after 3am. Partly cloudy, with a low around 28. Breezy, with a west wind 21 to 26 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Wednesday: A chance of snow, mainly after noon. Mostly sunny, with a high near 45. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.

Wednesday Night: A slight chance of rain and snow before 9pm, then a slight chance of snow. Mostly cloudy, with a low around 24.

Thursday: A chance of snow before 3pm, then a chance of rain and snow. Partly sunny, with a high near 49.

Thursday Night: A slight chance of rain and snow. Mostly cloudy, with a low around 27.

Friday: A slight chance of rain and snow. Mostly sunny, with a high near 56.

Friday Night: Partly cloudy, with a low around 31.

Saturday: A slight chance of rain. Mostly sunny, with a high near 61.

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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 is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds