Forecast Details for Grangeville, ID

Recent Locations: Rock Springs, WY Grangeville, ID Hankamer, TX

Today: Sunny, with a high near 46. Calm wind becoming west southwest around 5 mph.

Tonight: Mostly cloudy, with a low around 29. Calm wind becoming south around 5 mph after midnight.

Friday: Partly sunny, with a high near 45. Southwest wind around 6 mph.

Friday Night: A 40 percent chance of rain after 11pm. Snow level 4800 feet lowering to 4200 feet. Cloudy, with a low around 35. South southwest wind around 5 mph becoming calm in the evening.

Saturday: Rain likely. Patchy fog between 8am and 9am. Snow level 4200 feet rising to 4700 feet in the afternoon. Otherwise, cloudy, with a high near 45. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

Saturday Night: Rain likely before 2am, then rain likely, possibly mixed with snow. Cloudy, with a low around 36. Chance of precipitation is 70%. Little or no snow accumulation expected.

Sunday: Rain likely, possibly mixed with snow, mainly before 11am. Snow level 4300 feet. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. Little or no snow accumulation expected.

Sunday Night: A slight chance of rain before 11pm, then a chance of rain and snow. Patchy fog after 4am. Snow level 4400 feet lowering to 3900 feet after midnight . Otherwise, mostly cloudy, with a low around 32.

Washington's Birthday: A chance of rain and snow before 8am, then a chance of rain. Snow level 3600 feet rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 42.

Monday Night: A chance of rain before 8pm, then a chance of rain and snow. Snow level 4600 feet lowering to 3800 feet after midnight . Cloudy, with a low around 31.

Tuesday: Snow likely. Mostly cloudy, with a high near 39.

Tuesday Night: A chance of snow. Mostly cloudy, with a low around 28.

Wednesday: Snow likely. Mostly cloudy, with a high near 40.

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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