Weather forecast for tomorrowUnion City, CA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 64°F
- 52°F
Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 13mphW 275°
- Humidity: 63%
- UV index: 5
- Sunrise: 7:20 am PDT
- Sunset: 6:25 pm PDT
- details ▼
Tomorrow, in Union City, overcast skies are expected.
Temperatures will oscillate between a comfortable 64.4°F at their highest and a fresh 51.8°F at their lowest.
It will be colder, as the maximum temperature reflects November's norm of 63.5°F instead of October's.
Sunrise will be at 7:20 am and sunset at 6:25 pm; tomorrow's daylight will last for 11h and 5min.
Temperatures will oscillate between a comfortable 64.4°F at their highest and a fresh 51.8°F at their lowest.
It will be colder, as the maximum temperature reflects November's norm of 63.5°F instead of October's.
Sunrise will be at 7:20 am and sunset at 6:25 pm; tomorrow's daylight will last for 11h and 5min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 55°C.
Coldest hour: 6 am 55°C.
Chance of precipitation
Highest chance: 12 am 22%.
Hourly weather forecast
- 12 am
- 57°F
- Feels like:55°F
Mostly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 7mphW 273°
- Humidity: 80%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 57°F
- Feels like:55°F
Mostly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 7mphW 265°
- Humidity: 79%
- Pressure: 30"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 4 am
- 55°F
- Feels like:55°F
Mostly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 6mphWSW 255°
- Humidity: 78%
- Pressure: 29.97"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 6 am
- 55°F
- Feels like:54°F
Mostly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 6mphW 265°
- Humidity: 78%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:20 am
- 8 am
- 57°F
- Feels like:55°F
Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 6mphW 262°
- Humidity: 74%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 59°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 7mphW 263°
- Humidity: 68%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 61°F
- Feels like:61°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphW 269°
- Humidity: 59%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphWNW 285°
- Humidity: 54%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 63°F
- Feels like:61°F
Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 13mphWNW 290°
- Humidity: 57%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:59°F
Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 12mphWNW 288°
- Humidity: 62%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:25 pm
- 8 pm
- 57°F
- Feels like:55°F
Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 7mphWNW 296°
- Humidity: 71%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 57°F
- Feels like:55°F
Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 4mphWNW 297°
- Humidity: 74%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of cloudy and mostly clear weather is expected.
The temperature will be between a minimum of 55.4°F and a maximum of 64.4°F. The warmest part of the day will be at 2 pm and 3 pm.
The expected temperature aligns more with November's average high than with October's 72.1°F. The lowest temperature is alike with October's typical minimum of 53.8°F.
The temperature will be between a minimum of 55.4°F and a maximum of 64.4°F. The warmest part of the day will be at 2 pm and 3 pm.
The expected temperature aligns more with November's average high than with October's 72.1°F. The lowest temperature is alike with October's typical minimum of 53.8°F.
Updated: Oct 18, 2026 @ 16:03:30 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, overcast conditions are likely to persist.
Tomorrow, the highest temperature in Union City will be 64.4°F, while the lowest temperature will be 51.8°F.
The highest temperature will be relatively lower than the average maximum of 72.1°F in October. The lowest temperature will be in line with the average low of 53.8°F.
The highest temperature will be relatively lower than the average maximum of 72.1°F in October. The lowest temperature will be in line with the average low of 53.8°F.
On Monday, in Union City, sunrise will be at 7:20 am and sunset at 6:25 pm (PDT).
Tomorrow, the daylight will last for 11h and 5min.
