Forecast Details for Grand Lake, CO

Recent Locations: Grand Lake, CO  
Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 28. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 40%.
Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 60. West wind 5 to 11 mph, with gusts as high as 18 mph.
Wednesday Night: Mostly clear, with a low around 29. West southwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Thursday: Showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 58. Southwest wind 3 to 8 mph. Chance of precipitation is 60%.
Thursday Night: A chance of rain showers before 10pm, then a chance of rain and snow showers. Some thunder is also possible. Cloudy, with a low around 28. Breezy, with a west wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Friday: Snow showers likely before 7am, then rain and snow showers likely between 7am and noon, then rain showers likely after noon. Some thunder is also possible. Mostly cloudy, with a high near 50. Breezy. Chance of precipitation is 70%.
Friday Night: Rain showers likely before 9pm, then rain and snow showers likely between 9pm and 5am, then snow showers likely after 5am. Some thunder is also possible. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Saturday: Snow showers before 9am, then rain and snow showers between 9am and 1pm, then rain showers after 1pm. Some thunder is also possible. Cloudy, with a high near 45.
Saturday Night: Rain and snow showers likely, becoming all snow after 10pm. Some thunder is also possible. Cloudy, with a low around 28.
Sunday: Snow showers likely before 5pm, then rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 45. Breezy.
Sunday Night: A slight chance of rain and snow showers. Mostly cloudy, with a low around 22. Blustery.
Monday: A slight chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 51. Breezy.
Monday Night: Partly cloudy, with a low around 26.
Tuesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 58. Breezy.

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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).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

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

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle