Forecast Details for Casper, WY

Recent Locations: Palmyra, NJ Trumann, AR Casper, WY

This Afternoon: A slight chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 68. Windy, with a west southwest wind 24 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%.

Tonight: Snow showers, possibly mixed with rain, becoming all snow after 11pm. Some thunder is also possible. Low around 26. Blustery, with a north northwest wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Friday: Snow showers likely, mainly before 2pm. Partly sunny, with a high near 38. Northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday Night: A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 18. Northwest wind 6 to 10 mph becoming west southwest after midnight.

Saturday: Sunny, with a high near 48. Breezy, with a west wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

Saturday Night: Mostly clear, with a low around 27. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

Sunday: Sunny, with a high near 64. Breezy, with a west southwest wind 10 to 16 mph, with gusts as high as 24 mph.

Sunday Night: Partly cloudy, with a low around 36.

Monday: Mostly sunny, with a high near 72. Breezy.

Monday Night: Mostly clear, with a low around 42.

Tuesday: Sunny, with a high near 76. Breezy.

Tuesday Night: Partly cloudy, with a low around 46.

Wednesday: A slight chance of showers. Mostly sunny, with a high near 76. Breezy.

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 are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds