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Union City, CA Weather Forecast | 5 Day
Updated: Sun Jul 13th 2025 9:45 AM PDT
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Partly Cloudy
Sun 7-13
Partly Cloudy with a high of 80°F and a low of 57°F. Winds will be light at 9mph and gusts of 10.3mph at 9 PM. The humidity will be on the higher side, averaging about 71%, the maximum being 82% at 11 PM and 43% being its lowest at 2 PM. Barometric pressure is its highest of 30inHg at 10 AM, a lowest point of 29.93inHg at 5 PM with an avg 29.96inHg.
- HI: 80°F
- LO: 57°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
8.7 mph - Humidity
71% avg. - UV Index
2.9 - Air QualityModerate
- Sunrise
05:58 AM - Sunset
08:30 PM - Moonrise
10:39 PM - Moonset
08:47 AM - Moon Phase
Waning Gibbous

Partly Cloudy
Mon 7-14
Partly Cloudy with a high of 79°F and a low of 55°F. Winds will be light at 9mph and gusts of 10.3mph at 9 PM. The humidity will be on the higher side, averaging about 71%, the maximum being 94% at 6 AM and 41% being its lowest at 2 PM. Barometric pressure is its highest of 29.96inHg at 12 AM, a lowest point of 29.87inHg at 6 PM with an avg 29.92inHg.
- HI: 79°F
- LO: 55°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
8.9 mph - Humidity
71% avg. - UV Index
2.9 - Air QualityModerate
- Sunrise
05:59 AM - Sunset
08:29 PM - Moonrise
11:05 PM - Moonset
09:55 AM - Moon Phase
Waning Gibbous

Sunny
Tue 7-15
Sunny with a high of 81°F and a low of 55°F. Winds will be light at 9mph and gusts of 10.3mph at 4 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 90% at 5 AM and 41% being its lowest at 2 PM. Barometric pressure is its highest of 29.92inHg at 11 PM, a lowest point of 29.87inHg at 6 PM with an avg 29.89inHg.
- HI: 81°F
- LO: 55°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
8.9 mph - Humidity
67% avg. - UV Index
2.8 - Air QualityModerate
- Sunrise
05:59 AM - Sunset
08:29 PM - Moonrise
11:30 PM - Moonset
11:03 AM - Moon Phase
Waning Gibbous

Partly Cloudy
Wed 7-16
Partly Cloudy with a high of 76°F and a low of 56°F. Winds will be light at 10mph and gusts of 11.3mph at 4 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 89% at 5 AM and 41% being its lowest at 2 PM. Barometric pressure is its highest of 29.92inHg at 11 AM, a lowest point of 29.86inHg at 6 PM with an avg 29.89inHg.
- HI: 76°F
- LO: 56°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
9.8 mph - Humidity
69% avg. - UV Index
2.9 - Air QualityGood
- Sunrise
06:00 AM - Sunset
08:28 PM - Moonrise
11:56 PM - Moonset
12:12 PM - Moon Phase
Waning Gibbous

Sunny
Thu 7-17
Sunny with a high of 78°F and a low of 54°F. Wind will be moderate, blowing around 11mph on average and gusts of 11.6mph at 4 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 87% at 5 AM and 39% being its lowest at 1 PM. Barometric pressure is its highest of 29.95inHg at 11 PM, a lowest point of 29.88inHg at 6 PM with an avg 29.9inHg.
- HI: 78°F
- LO: 54°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
10.1 mph - Humidity
66% avg. - UV Index
0 - Air QualityGood
- Sunrise
06:01 AM - Sunset
08:28 PM - Moonrise
No moonrise - Moonset
01:22 PM - Moon Phase
Last Quarter

Sunny
Fri 7-18
Sunny with a high of 76°F and a low of 55°F. Winds will be light at 9mph and gusts of 9.5mph at 2 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 87% at 5 AM and 41% being its lowest at 2 PM. Barometric pressure is its highest of 29.98inHg at 11 PM, a lowest point of 29.93inHg at 5 PM with an avg 29.96inHg.
- HI: 76°F
- LO: 55°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
8.3 mph - Humidity
67% avg. - UV Index
5 - Air QualityTBA
- Sunrise
06:01 AM - Sunset
08:27 PM - Moonrise
12:23 AM - Moonset
02:34 PM - Moon Phase
Last Quarter
Currently
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59°F |
30 inHg.
Barometer 87%
Humidity WNW 5.4 mph Wind |
Overcast |