Forecast Details for Saint Marie, MT

Recent Locations: Baltimore, OH Concho, OK Saint Marie, MT

Today: Increasing clouds, with a high near 17. Wind chill values between -5 and -15. East southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

Tonight: Mostly cloudy during the early evening, then becoming clear, with a low around 10. Wind chill values between -5 and zero. East southeast wind 10 to 20 mph, with gusts as high as 28 mph.

Monday: Increasing clouds, with a high near 42. South wind 6 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.

Monday Night: A slight chance of rain before 2am, then a slight chance of snow. Mostly cloudy, with a low around 22. West northwest wind 16 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

Tuesday: Mostly sunny, with a high near 35. West northwest wind 14 to 16 mph, with gusts as high as 26 mph.

Tuesday Night: A 30 percent chance of snow after 11pm. Partly cloudy, with a low around 21. West northwest wind 8 to 10 mph becoming southeast after midnight. New snow accumulation of less than a half inch possible.

Wednesday: A 30 percent chance of snow before 11am. Mostly sunny, with a high near 38. Southeast wind 10 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph. Little or no snow accumulation expected.

Wednesday Night: Mostly clear, with a low around 25. West wind 17 to 20 mph, with gusts as high as 26 mph.

Thursday: Sunny, with a high near 44. Breezy, with a west wind 21 to 28 mph, with gusts as high as 34 mph.

Thursday Night: A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 25. Breezy, with a west wind around 24 mph, with gusts as high as 30 mph.

Friday: A 30 percent chance of snow. Partly sunny, with a high near 35. Breezy, with a northwest wind 23 to 25 mph, with gusts as high as 31 mph.

Friday Night: A chance of snow. Mostly cloudy, with a low around 8. Blustery.

Saturday: A slight chance of snow. Mostly sunny, with a high near 20.

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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 Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds