Forecast Details for Casper, WY

Recent Locations: Gallatin, TN Annona, TX Casper, WY

Tonight: A slight chance of showers and thunderstorms between 7pm and 3am. Mostly cloudy, with a low around 55. Breezy, with an east wind 11 to 16 mph becoming light east northeast after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 10%.

Monday: Mostly sunny, with a high near 79. Light east northeast wind becoming northeast 5 to 10 mph in the afternoon.

Monday Night: Mostly cloudy, with a low around 51. East northeast wind 5 to 10 mph becoming light east southeast after midnight.

Tuesday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 84. Light east southeast wind becoming east 6 to 11 mph in the afternoon. Chance of precipitation is 20%.

Tuesday Night: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 58. East wind 8 to 13 mph becoming light and variable after midnight.

Wednesday: A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 75. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 70%.

Wednesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 54. East northeast wind 5 to 7 mph becoming southeast after midnight. Chance of precipitation is 60%.

Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78. Chance of precipitation is 60%.

Thursday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.

Friday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.

Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 50.

Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 79.

Saturday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 50.

Sunday: A slight chance of showers and thunderstorms. Sunny, with a high near 82.

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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)

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 Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation