Forecast Details for San Bruno, CA

Recent Locations: Camden, NJ Folcroft, PA San Bruno, CA

This Afternoon: Mostly cloudy, with a high near 57. South southwest wind around 11 mph.

Tonight: A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 53. South wind around 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

Sunday: Rain. High near 58. South southeast wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night: Rain. Low around 51. South wind 5 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Washington's Birthday: Rain. High near 54. East wind 6 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Monday Night: Rain. Low around 49. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday: Rain. High near 51. Chance of precipitation is 100%.

Tuesday Night: Rain. Cloudy, with a low around 46.

Wednesday: Rain. Mostly cloudy, with a high near 52.

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

Thursday: A chance of rain. Partly sunny, with a high near 53.

Thursday Night: A chance of rain. Mostly cloudy, with a low around 46.

Friday: A chance of rain. Partly sunny, with a high near 54.

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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 Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain

Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

Graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail