Forecast Details for San Francisco International Airport, CA

Recent Locations: San Francisco International Airport, CA

Tonight: Partly cloudy, with a low around 52. West wind 11 to 16 mph, with gusts as high as 23 mph.

Friday: Sunny, with a high near 66. Breezy, with a west wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 29 mph.

Friday Night: Increasing clouds, with a low around 52. West wind around 21 mph, with gusts as high as 28 mph.

Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 64. Breezy, with a west wind 20 to 28 mph, with gusts as high as 38 mph.

Saturday Night: Mostly clear, with a low around 50. Windy, with a west northwest wind 25 to 30 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 41 mph.

Sunday: Sunny, with a high near 66. Breezy.

Sunday Night: Clear, with a low around 51. Breezy.

Monday: Sunny, with a high near 71.

Monday Night: Clear, with a low around 53. Breezy.

Tuesday: Sunny, with a high near 71.

Tuesday Night: Clear, with a low around 51. Breezy.

Wednesday: Sunny, with a high near 71.

Wednesday Night: Clear, with a low around 52.

Thursday: Sunny, with a high near 72.

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

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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 Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation