Forecast Details for Boulder, WY

Recent Locations: Boulder, WY

Overnight: Partly cloudy, with a low around 26. Light north wind.

Tuesday: Mostly sunny, with a high near 60. Light and variable wind becoming west northwest 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

Tuesday Night: Isolated showers between 7pm and 9pm. Partly cloudy, with a low around 32. Breezy, with a west northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

Wednesday: Mostly sunny, with a high near 66. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

Wednesday Night: Mostly cloudy, with a low around 34. West wind 5 to 14 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

Thursday: A slight chance of rain and snow before 7am, then rain likely. Some thunder is also possible. Partly sunny, with a high near 62. Breezy, with a northeast wind 5 to 10 mph becoming west 12 to 17 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

Thursday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 32. West northwest wind 9 to 14 mph, with gusts as high as 21 mph.

Friday: A slight chance of rain, then rain likely and possibly a thunderstorm after noon. Some of the storms could produce gusty winds. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.

Friday Night: Rain likely before 4am, then rain and snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

Saturday: A chance of rain and snow before 10am, then rain likely. Some thunder is also possible. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.

Saturday Night: A slight chance of rain and snow. Mostly cloudy, with a low around 28.

Sunday: A slight chance of rain. Partly sunny, with a high near 55.

Sunday Night: Partly cloudy, with a low around 28.

Monday: A slight chance of rain. Mostly sunny, with a high near 61. Breezy.

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Current U.S. National Radar--Current

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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)

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds