Forecast Details for Hayward, CA

Recent Locations: Hayward, CA  
Today: Sunny, with a high near 69. Light west southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Tonight: Clear, with a low around 48. West wind 5 to 9 mph becoming calm after midnight.
Wednesday: Sunny, with a high near 76. Northwest wind 5 to 11 mph, with gusts as high as 18 mph.
Wednesday Night: Mostly clear, with a low around 50. West northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Thursday: Sunny, with a high near 74. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night: Mostly clear, with a low around 50.
Friday: Sunny, with a high near 73.
Friday Night: Partly cloudy, with a low around 52.
Saturday: A chance of rain, mainly after 11am. Mostly cloudy, with a high near 62.
Saturday Night: A chance of rain, mainly before 11pm. Partly cloudy, with a low around 47.
Sunday: Mostly sunny, with a high near 64.
Sunday Night: Partly cloudy, with a low around 48.
Monday: Mostly sunny, with a high near 67.

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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 Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog