Forecast Details for San Bernardino, CA

Recent Locations: Worth, IL   Deep Water, WV   San Bernardino, CA  
This Afternoon: Sunny, with a high near 72. Southwest wind around 5 mph.
Tonight: Increasing clouds, with a low around 54. Southwest wind 5 to 10 mph becoming light in the evening.
Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 78. Southwest wind 5 to 10 mph.
Tuesday Night: Partly cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light in the evening.
Wednesday: Patchy fog before 11am. Otherwise, sunny, with a high near 80. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Wednesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 55.
Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 74.
Thursday Night: Increasing clouds, with a low around 54.
Friday: Cloudy through mid morning, then gradual clearing, with a high near 73.
Friday Night: Increasing clouds, with a low around 53.
Saturday: Cloudy through mid morning, then gradual clearing, with a high near 71.
Saturday Night: Increasing clouds, with a low around 54.
Sunday: Cloudy through mid morning, then gradual clearing, with a high near 76.

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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).

Current U.S. National Radar

National Weather Forecast--Current

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

Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

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

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