Forecast Details for Heart Butte, MT

Recent Locations: Trenton, MI Brumley, MO Heart Butte, MT

This Afternoon: A 20 percent chance of showers and thunderstorms after 1pm. Areas of smoke. Mostly cloudy, with a high near 77. West wind around 16 mph, with gusts as high as 25 mph.

Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Widespread haze after 11pm. Areas of smoke before 11pm. Partly cloudy, with a low around 56. West southwest wind around 14 mph, with gusts as high as 23 mph.

Monday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Widespread haze. Mostly sunny, with a high near 76. West wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Monday Night: Widespread haze before 7pm. Partly cloudy, with a low around 53. West southwest wind 6 to 10 mph.

Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. West southwest wind 5 to 9 mph becoming east southeast in the afternoon.

Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. Southeast wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 60%.

Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. West wind 6 to 9 mph becoming north northeast in the afternoon. Chance of precipitation is 40%.

Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. North wind 6 to 8 mph becoming west in the evening.

Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67.

Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.

Friday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 65.

Friday Night: A chance of showers. Mostly cloudy, with a low around 51.

Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 66.

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

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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 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