| NWS Forecast for: Union City CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA Last Update: 2:42 pm PDT Jul 13, 2025 |  |
| Tonight: Increasing clouds, with a low around 55. West northwest wind 5 to 9 mph becoming light after midnight. Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light west northwest wind increasing to 5 to 10 mph in the morning. Monday Night: Increasing clouds, with a low around 55. West southwest wind 6 to 10 mph. Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Light west southwest wind becoming west 5 to 10 mph in the morning. Tuesday Night: Partly cloudy, with a low around 55. West wind 7 to 11 mph, with gusts as high as 20 mph. Wednesday: Mostly sunny, with a high near 73. Wednesday Night: Partly cloudy, with a low around 55. Thursday: Mostly sunny, with a high near 73. Thursday Night: Mostly clear, with a low around 54. Friday: Mostly sunny, with a high near 72. Friday Night: Mostly clear, with a low around 54. Saturday: Mostly sunny, with a high near 74. Saturday Night: Partly cloudy, with a low around 54. Sunday: Mostly sunny, with a high near 76. | |
| Union City CA 37.61°N 122°W (Elev. 594 ft) | |
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