Forecast Details for Boulder, WY

Recent Locations: Rockford, IL Pasadena, TX Boulder, WY

Tonight: Rain likely, possibly mixed with snow showers before 3am, then a chance of rain showers between 3am and 4am, then a chance of rain and snow showers after 4am. Cloudy, with a low around 31. Light and variable wind. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday: A chance of rain and snow showers before 11am, then a chance of rain showers. Some thunder is also possible. Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a light and variable wind becoming northwest 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Wednesday Night: Snow showers likely, possibly mixed with rain, mainly after 5am. Some thunder is also possible. Increasing clouds, with a low around 29. Northwest wind 5 to 14 mph becoming southeast after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday: Snow showers, possibly mixed with rain, becoming all snow after 9am. Some thunder is also possible. High near 43. Breezy, with a south wind 8 to 13 mph becoming west 19 to 24 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday Night: Mostly cloudy, with a low around 18. Breezy, with a west wind 17 to 22 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 32 mph.

Friday: A 20 percent chance of snow showers after noon. Partly sunny, with a high near 42. Breezy, with a northwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

Friday Night: Partly cloudy, with a low around 17. Blustery, with a northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 24 mph.

Saturday: Sunny, with a high near 52.

Saturday Night: Clear, with a low around 21.

Sunday: Sunny, with a high near 57.

Sunday Night: Partly cloudy, with a low around 24.

Monday: Mostly sunny, with a high near 61.

Monday Night: Partly cloudy, with a low around 27.

Tuesday: Mostly sunny, with a high near 62. Breezy.

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North America Water Vapor (Moisture)

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Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

Graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail

Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds