Forecast Details for Modesto, CA

Recent Locations: Palmdale, CA Denver, CO Modesto, CA

Tonight: Rain likely, mainly before 5am. Mostly cloudy, with a low around 54. Southeast wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: A chance of rain and thunderstorms before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. High near 60. South southeast wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: A 40 percent chance of rain before 10pm. Mostly cloudy, with a low around 44. Southeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

Thursday: Sunny, with a high near 61. Northwest wind 3 to 6 mph.

Thursday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 44. Northwest wind 3 to 6 mph.

Friday: Patchy fog before 10am. Otherwise, sunny, with a high near 62.

Friday Night: Mostly cloudy, with a low around 44.

Saturday: Cloudy, with a high near 61.

Saturday Night: A slight chance of rain after 10pm. Cloudy, with a low around 48.

Sunday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 58.

Sunday Night: Rain. Mostly cloudy, with a low around 46.

Washington's Birthday: Rain. Mostly cloudy, with a high near 54.

Monday Night: Rain. Cloudy, with a low around 45.

Tuesday: Rain. Cloudy, with a high near 52.

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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

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

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.

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

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