Forecast Details for San Bruno, CA

Recent Locations: Lincoln, RI Wayne, NE San Bruno, CA

Overnight: A 40 percent chance of rain. Mostly cloudy, with a low around 53. Southeast wind around 11 mph, with gusts as high as 22 mph.

Sunday: Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 58. South southeast wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night: Rain and possibly a thunderstorm. Low around 51. South wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Washington's Birthday: Rain. High near 53. Northeast wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Monday Night: Rain, mainly after 4am. Low around 49. West northwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday: Rain and possibly a thunderstorm before 7am, then showers and possibly a thunderstorm after 7am. High near 52. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night: Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Low around 45. Chance of precipitation is 100%.

Wednesday: Rain. Mostly cloudy, with a high near 51.

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

Thursday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 52.

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.

Friday Night: A chance of rain. Mostly cloudy, with a low around 47.

Saturday: A chance of rain. Partly sunny, with a high near 57.

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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

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North America Water Vapor (Moisture)

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Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds