Forecast Details for Casper, WY

Recent Locations: Casper, WY

Tonight: Mostly clear, with a low around 57. Northeast wind around 6 mph becoming west southwest after midnight.

Wednesday: A slight chance of thunderstorms after 4pm. Sunny, with a high near 93. Light and variable wind becoming southeast 9 to 14 mph in the afternoon. Chance of precipitation is 10%.

Wednesday Night: A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and midnight. Mostly cloudy, with a low around 60. Southeast wind 6 to 13 mph becoming southwest after midnight. Chance of precipitation is 10%.

Thursday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 91. West southwest wind 6 to 13 mph, with gusts as high as 20 mph.

Thursday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

Independence Day: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. West southwest wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

Friday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54. Northwest wind 6 to 13 mph becoming southwest after midnight.

Saturday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 87.

Saturday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.

Sunday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 88.

Sunday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 54.

Monday: A slight chance of showers and thunderstorms. Sunny, with a high near 89.

Monday Night: Partly cloudy, with a low around 55.

Tuesday: A slight chance of showers and thunderstorms. Sunny, with a high near 93.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

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 is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet