Point Forecast: 2 Miles SW Union City CA
 37.58N 122.04W (Elev. 37 m)
Last Update: 11:39 am PDT Jul 13, 2025
Tabular Forecast
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Weather ElementsWeather/Precipitation
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

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

48-Hour Period Starting:       Back 2 Days  

Date07/1307/14
Hour (PDT)111213141516171819202122230001020304050607080910
Temperature (°C)192223242524242220181716151514141414141415161719
Dewpoint (°C)141616161616161614141313131313121212121212131414
Heat Index (°C)24252424
Surface Wind (mph)67810101111109987665532222223
Wind DirWNWWNWWNWWNWNWNWNWNWNWNWNNWNNWNWNNWNWNWNWNWNWNWNWWNWWNWWNW
Gust
Sky Cover (%)2710312111141723375170747476798281736040
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)746661575857596470778287888788888888878786858176
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/15
Hour (PDT)111213141516171819202122230001020304050607080910
Temperature (°C)212324262625242320181616161515151414141414161719
Dewpoint (°C)141616151615161514131413131312121212121212131314
Heat Index (°C)2526262524
Surface Wind (mph)678101011131110988777555333555
Wind DirWNWWNWWNWWNWNWNWNWNWNWWNWWNWWNWWWWWWWWWWSWSWSW
Gust
Sky Cover (%)126211222291518212121525252757575545454
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)686256525353586169758487868685858687878786847974
Rain------------------------------------------------
Thunder------------------------------------------------

Additional Forecasts and Information
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River Stage Summary24 Hour Precipitation Summary
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