Forecast Details for Roundup, MT

Recent Locations: Council, ID Felicity, OH Roundup, MT

Overnight: A 20 percent chance of snow showers before 3am. Cloudy, with a low around 25. Calm wind.

Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 53. Calm wind becoming east 5 to 8 mph in the afternoon.

Wednesday Night: Mostly cloudy, with a low around 32. East wind 3 to 8 mph.

Thursday: A chance of showers before 9am, then rain, mainly after noon. High near 52. East wind 6 to 11 mph. Chance of precipitation is 90%.

Thursday Night: Rain before 9pm, then rain and snow between 9pm and 3am, then snow after 3am. Low around 30. North northwest wind 13 to 15 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

Friday: Snow before 3pm, then rain and snow likely. High near 44. North northwest wind 11 to 13 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Friday Night: A slight chance of rain and snow before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 26. North wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 20%.

Saturday: Sunny, with a high near 59. West southwest wind 5 to 8 mph.

Saturday Night: Partly cloudy, with a low around 33. North northwest wind 5 to 7 mph becoming calm in the evening.

Sunday: Mostly sunny, with a high near 65. West southwest wind 5 to 11 mph becoming northwest in the afternoon.

Sunday Night: A slight chance of rain and snow showers. Mostly cloudy, with a low around 34. North wind 5 to 10 mph. Chance of precipitation is 20%.

Monday: Partly sunny, with a high near 58. North northeast wind 5 to 9 mph becoming east southeast in the afternoon.

Monday Night: Mostly cloudy, with a low around 34. East southeast wind 5 to 8 mph becoming light and variable after midnight.

Tuesday: Mostly sunny, with a high near 72. Southwest wind 5 to 11 mph.

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North America Water Vapor (Moisture)

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Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds