Point Forecast: Sunnyvale CA
 37.38N 122.05W (Elev. 118 ft)
Last Update: 3:02 am 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)030405060708091011121314151617181920212223000102
Temperature (°F)595958575860636770757778787977757266636262616059
Dewpoint (°F)555555545556565959616162626261606058575656565655
Heat Index (°F)75777878797775
Surface Wind (mph)22222222567891010987666655
Wind DirNNWNNWNNWNNWSSEESENENNNNNWNNWNNNNNNENNNENENEEESESSE
Gust
Sky Cover (%)415458635757381242110111126710152530
Precipitation Potential (%)001111111111111111111111
Relative Humidity (%)868788888786797468615958575657606673808282838587
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/17
Hour (PDT)030405060708091011121314151617181920212223000102
Temperature (°F)585858585860626769727475767675736966636159585858
Dewpoint (°F)545454545455565858596060606060595756565656555554
Heat Index (°F)75767675
Surface Wind (mph)333333335558889997775552
Wind DirSSESSESSWSSESSSSWSWWSWWSWWSWWWWWNWWNWWNWWWWWSWWSWWSWSW
Gust
Sky Cover (%)363933293128221255533322244414141442
Precipitation Potential (%)110000000000001111111111
Relative Humidity (%)868787878785787368646260585758616672788388898988
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