Point Forecast: 2 Miles W Castro Valley CA
 37.71N 122.08W (Elev. 397 ft)
Last Update: 1:26 pm PDT Jul 15, 2025
Tabular Forecast
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Weather ElementsWeather/Precipitation
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Trans. Wind  
20ft Wind  

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (PDT)192021222300010203040506070809101112131415161718
Temperature (°F)656259585857575757565757575758616467707171706968
Dewpoint (°F)565554545454535354535353545455555658585858585857
Heat Index (°F)
Surface Wind (mph)1010998877666666667891010101010
Wind DirWWWWWWWWWWWWSWWSWWSWWSWWWWWWWWWW
Gust18
Sky Cover (%)61736495563768084858891898775592210722333
Precipitation Potential (%)666644444444444422222233
Relative Humidity (%)727885878887888789898688898987827772666464646667
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/17
Hour (PDT)192021222300010203040506070809101112131415161718
Temperature (°F)646159585757575757575756575860646770727474747269
Dewpoint (°F)565555545454545454545454545456575859595959595858
Heat Index (°F)
Surface Wind (mph)99987775553333337779991010
Wind DirWWWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWSWSWSWWSWWSWWSWWWWWW
Gust
Sky Cover (%)418334964646480808090909077777715151522233
Precipitation Potential (%)333344444411111111111100
Relative Humidity (%)758086899090898889899091918986807468636058596268
Rain------------------------------------------------
Thunder------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
River Stage Summary24 Hour Precipitation Summary
NWS Office Map