Forecast Details for Chinook, MT

Recent Locations: Worcester, MA Hurlock, MD Chinook, MT

Tonight: A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 28. East southeast wind 15 to 17 mph, with gusts as high as 25 mph.

Thursday: Rain, possibly mixed with snow, mainly after 4pm. High near 44. East southeast wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday Night: Rain, possibly mixed with snow, becoming all snow after 5am. Low around 29. North northeast wind 6 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Friday: A 40 percent chance of snow before noon. Cloudy, with a high near 45. West northwest wind 6 to 9 mph. New snow accumulation of less than a half inch possible.

Friday Night: Partly cloudy, with a low around 24. West northwest wind 5 to 8 mph becoming light and variable in the evening.

Saturday: Sunny, with a high near 57. Light west southwest wind becoming west northwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

Saturday Night: Partly cloudy, with a low around 28. Northwest wind 8 to 13 mph becoming light west northwest after midnight. Winds could gust as high as 18 mph.

Sunday: Partly sunny, with a high near 52. Light north wind becoming northeast 5 to 10 mph in the morning.

Sunday Night: Mostly cloudy, with a low around 27.

Monday: Mostly cloudy, with a high near 51.

Monday Night: Mostly cloudy, with a low around 29.

Tuesday: Mostly sunny, with a high near 65.

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

Wednesday: A slight chance of rain. Mostly cloudy, with a high near 53.

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 Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

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