Forecast Details for West Covina, CA

Recent Locations: West Covina, CA  
Today: Sunny, with a high near 75. Light southwest wind becoming west southwest 5 to 10 mph in the afternoon.
Tonight: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 55. West southwest wind 5 to 10 mph becoming light in the evening.
Saturday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Saturday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79. Southeast wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 15 mph.
Sunday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 59.
Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79.
Monday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58.
Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76.
Tuesday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 57.
Wednesday: Patchy fog. Otherwise, mostly sunny, with a high near 76.
Wednesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 57.
Thursday: Patchy fog. Otherwise, mostly sunny, with a high near 78.

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Current U.S. National Radar--Current

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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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Tomorrows National Weather Map

North America Water Vapor (Moisture)

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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