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Union City, California Weather

Union City, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for Union City, Alameda County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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🌊 Marine & Fishing

Tides, marine forecast and fishing conditions near Union City. Nearest NOAA tide station:

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✈️ Aviation Weather

Flight conditions near Union City — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…

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🌿 Air Quality
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NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Union City and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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About Union City, California

Union City rests against the foothills of the East Bay hills, a place where the land begins its gentle climb from the flat expanse of the bay lowlands. It lies 3.7 miles north-north-west of Fremont, CA (from Fremont, CA: bearing 333°T), and is situated 6.1 miles south-east of Hayward. The air here carries the faint scent of eucalyptus from the higher elevations, a dry, clean fragrance that mingles with the more urban aromas of asphalt and exhaust. Sunlight, especially in the late afternoon, casts long shadows that stretch across the grid of streets, revealing the subtle undulations of the terrain. You can see the distant shimmer of the bay on clearer days, a constant, quiet presence that shapes the very character of the place, drawing the eye westward. The history of Union City is one of transformation, from agricultural roots to a burgeoning industrial hub that served the needs of a growing region. Early settlers found fertile ground, and for decades, the land yielded crops that fed a hungry state. This agricultural past still whispers in the names of some streets and the occasional open space that resists the relentless march of development. Today, its economy is more diverse, with a strong presence in logistics and manufacturing, a testament to its strategic position near major transportation arteries. The legacy of its hardworking past is evident in the quiet determination of its residents, a people who have always understood the value of labor and the rewards of building something tangible.

LocationUnion City, Alameda County, California
Coordinates37.595833°N, 122.019167°W
TimezonePacific Time (America/Los_Angeles)
ZIP Code(s)94587, 94552
Area Code510
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service