Forecast Details for Arvada, CO

Recent Locations: Granada Hills, CA Phoenix, AZ Arvada, CO

Tonight: A chance of rain before midnight, then rain, possibly mixed with snow between midnight and 3am, then snow after 3am. Patchy blowing snow after 3am. Low around 26. Blustery, with a north northwest wind 16 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

Sunday: A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 34. Breezy, with a north wind 16 to 23 mph, with gusts as high as 38 mph. New snow accumulation of less than a half inch possible.

Sunday Night: Partly cloudy, with a low around 19. North wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 29 mph.

Monday: Partly sunny, with a high near 53. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

Monday Night: Mostly cloudy, with a low around 41. West wind 7 to 9 mph, with gusts as high as 20 mph.

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

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

Wednesday: Sunny, with a high near 81.

Wednesday Night: Mostly clear, with a low around 48.

Thursday: Sunny, with a high near 84.

Thursday Night: Mostly clear, with a low around 49.

Friday: Sunny, with a high near 84.

Friday Night: Partly cloudy, with a low around 49.

Saturday: Mostly sunny, with a high near 84.

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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 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