National Weather Service United States Department of Commerce

We need your feedback! Take our new, shorter survey

NWS is conducting research on how to better serve your needs. Please complete our annual customer satisfaction survey. We've shortened it from previous years to make it easier for you to share your opinions with us. The survey is available via the link below and the core section should only take about 10 minutes to complete.
Read More...

Current Conditions

En Español

Share |

2 Miles WNW Castro Valley CA

7 Day Forecast

Tonight

Increasing Clouds

Increasing
Clouds

Low: 57 °F

Tuesday

Decreasing Clouds

Decreasing
Clouds

High: 76 °F

Tuesday
Night

Increasing Clouds

Increasing
Clouds

Low: 57 °F

Wednesday

Gradual Clearing

Gradual
Clearing

High: 75 °F

Wednesday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 58 °F

Thursday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 76 °F

Thursday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 58 °F

Friday

Mostly Sunny

Mostly
Sunny

High: 77 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 57 °F

Detailed Forecast

  • Tonight Increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light west southwest after midnight.
  • Tuesday Cloudy, then gradually becoming mostly sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.
  • Tuesday Night Increasing clouds, with a low around 57. West wind 5 to 8 mph becoming calm in the evening.
  • Wednesday Cloudy through mid morning, then gradual clearing, with a high near 75. Calm wind becoming west around 6 mph in the afternoon.
  • Wednesday Night A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 58. West wind 5 to 10 mph becoming light in the evening.
  • Thursday A 20 percent chance of showers. Mostly cloudy, with a high near 76.
  • Thursday Night Mostly cloudy, with a low around 58.
  • Friday Mostly sunny, with a high near 77.
  • Friday Night Partly cloudy, with a low around 57.
  • Saturday Mostly sunny, with a high near 78.
  • Saturday Night Partly cloudy, with a low around 57.
  • Sunday Mostly sunny, with a high near 78.
  • Sunday Night Partly cloudy, with a low around 57.
  • Monday Sunny, with a high near 80.