Forecast Details for Grand Terrace, CA

Recent Locations: Locust Grove, GA Hopewell, NJ Grand Terrace, CA

Current Alerts for Grand Terrace, CA: Wind Advisory Winter Storm Warning

Tonight: Showers and possibly a thunderstorm. Low around 43. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday: Showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 55. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: Increasing clouds, with a low around 40. Southwest wind 5 to 10 mph becoming light south after midnight.

Thursday: A chance of showers. Cloudy, with a high near 53. Southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night: A chance of showers before 10pm. Mostly cloudy, with a low around 38. Southwest wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday: Mostly sunny, with a high near 58.

Friday Night: Mostly clear, with a low around 38.

Saturday: Sunny, with a high near 65.

Saturday Night: Partly cloudy, with a low around 45.

Sunday: Mostly sunny, with a high near 69.

Sunday Night: A slight chance of showers. Partly cloudy, with a low around 48.

Monday: A chance of showers. Partly sunny, with a high near 72.

Monday Night: A chance of showers. Mostly cloudy, with a low around 50.

Tuesday: A chance of showers. Cloudy, with a high near 69.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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 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