Forecast Details for Butte, MT

Recent Locations: Strong, AR Primghar, IA Butte, MT

This Afternoon: Rain showers before 5pm, then rain and snow showers likely. Some thunder is also possible. High near 55. South southwest wind 14 to 17 mph becoming west northwest. Winds could gust as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tonight: Rain and snow before 3am, then a chance of snow. Snow level 6500 feet lowering to 5600 feet after midnight . Low around 31. West northwest wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday: Snow showers. Some thunder is also possible. High near 40. West northwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Thursday Night: Snow. Low around 22. North northwest wind 8 to 13 mph becoming light northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday: Snow, mainly before noon. High near 35. Calm wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around 14.

Saturday: A 20 percent chance of snow. Partly sunny, with a high near 40.

Saturday Night: Mostly cloudy, with a low around 19.

Sunday: A slight chance of snow after noon. Partly sunny, with a high near 41.

Sunday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 23.

Monday: A slight chance of snow. Partly sunny, with a high near 47.

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

Tuesday: A slight chance of rain and snow. Mostly sunny, with a high near 52.

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

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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 are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle