Forecast Details for Butte, MT

Recent Locations: Malin, OR Nora, IL Butte, MT

Overnight: Snow likely, mainly before 5am. Cloudy, with a low around 20. Light north northwest wind. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

Friday: Snow likely, mainly before noon. Partly sunny, with a high near 35. Light north northwest wind becoming northwest 5 to 10 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday Night: A 20 percent chance of snow before 8pm. Patchy fog after 5am. Widespread frost after 10pm. Otherwise, partly cloudy, with a low around 16. North northwest wind 5 to 10 mph becoming light and variable in the evening.

Saturday: A 20 percent chance of snow after noon. Patchy fog before 7am. Widespread frost before 11am. Otherwise, mostly sunny, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.

Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 21. North wind around 5 mph becoming calm after midnight.

Sunday: A 40 percent chance of snow. Mostly cloudy, with a high near 41. Little or no snow accumulation expected.

Sunday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 24. Little or no snow accumulation expected.

Monday: A chance of snow. Mostly cloudy, with a high near 45.

Monday Night: Partly cloudy, with a low around 26.

Tuesday: A slight chance of snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 50.

Tuesday Night: Partly cloudy, with a low around 28.

Wednesday: A slight chance of rain and snow. Snow level rising to 6300 feet in the afternoon. Mostly sunny, with a high near 53.

Wednesday Night: Partly cloudy, with a low around 30.

Thursday: Mostly sunny, with a high near 54.

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National Weather Forecast--Current

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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