Point Forecast: 2 Miles SW Union City CA
 37.58N 122.04W (Elev. 121 ft)
Last Update: 1:26 pm PDT Jul 14, 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  

Date07/1407/15
Hour (PDT)131415161718192021222300010203040506070809101112
Temperature (°F)757778777472676361606059585858575858586162656872
Dewpoint (°F)596061605859575656565555545454545454555657585860
Heat Index (°F)75777877
Surface Wind (mph)810101111111099876655333335567
Wind DirWNWWNWNWNWNWNWNWNWNWNNWNWNNWNWNWNWNWNNWNWWNWWWWNWWNWWNW
Gust1818
Sky Cover (%)3111113153332415064677073777674705535126
Precipitation Potential (%)000000000000000011111111
Relative Humidity (%)565656565764697884858587868686888787888482777065
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/16
Hour (PDT)131415161718192021222300010203040506070809101112
Temperature (°F)747575747372686461605959585858575858586061636668
Dewpoint (°F)596061605959575756565554545453535354545556565757
Heat Index (°F)7575
Surface Wind (mph)910111313131311111199977766655566
Wind DirWNWNWWNWWNWNWWNWWNWWWWWWWWSWWSWWSWWSWWSWWSWSSWSSWSSWWSWWSW
Gust20202018
Sky Cover (%)211222246142222225050506969696363631919
Precipitation Potential (%)111122222266666622222233
Relative Humidity (%)616060606264707883858686868585868686868582787369
Rain------------------------------------------------
Thunder------------------------------------------------

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