Forecast Details for Casper, WY

Recent Locations: Bement, IL Nora, IL Casper, WY

This Afternoon: Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 47. East wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Snow showers, possibly mixed with rain before 4am, then scattered snow showers. Some thunder is also possible. Low around 28. East northeast wind 7 to 13 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Monday: Scattered snow showers before 1pm, then scattered rain and snow showers between 1pm and 3pm, then scattered rain showers after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 47. North wind 5 to 9 mph becoming calm. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Monday Night: Rain showers likely before 9pm, then rain, possibly mixed with snow showers. Low around 32. East wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday: Scattered rain and snow showers before 9am, then rain showers likely. Some thunder is also possible. Partly sunny, with a high near 52. West wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Tuesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 29. Northwest wind 5 to 7 mph becoming calm in the evening.

Wednesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. Light and variable wind becoming west northwest 5 to 9 mph in the morning.

Wednesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

Thursday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 57. Chance of precipitation is 30%.

Thursday Night: Partly cloudy, with a low around 32.

Friday: Sunny, with a high near 65.

Friday Night: Mostly clear, with a low around 35.

Saturday: A slight chance of showers and thunderstorms. Sunny, with a high near 69.

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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