Forecast Details for American Canyon, CA

Recent Locations: American Canyon, CA  
Overnight: Mostly clear, with a low around 49. West wind around 7 mph.
Sunday: Partly sunny through mid morning, then becoming sunny, with a high near 74. West wind 6 to 13 mph, with gusts as high as 18 mph.
Sunday Night: Clear, then becoming mostly cloudy toward daybreak, with a low around 47. West wind 8 to 14 mph, with gusts as high as 18 mph.
Monday: Sunny, with a high near 74. West northwest wind 6 to 9 mph.
Monday Night: Clear, with a low around 46. West wind 6 to 11 mph.
Tuesday: Sunny, with a high near 74.
Tuesday Night: Clear, with a low around 48.
Wednesday: Sunny, with a high near 77.
Wednesday Night: Clear, with a low around 52.
Thursday: Sunny, with a high near 80.
Thursday Night: Clear, with a low around 51.
Friday: Sunny, with a high near 78.
Friday Night: Mostly clear, with a low around 51.
Saturday: Mostly sunny, with a high near 71.

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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

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - 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