Union City, CA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms then Light Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Union City, CA in one place.
Showers and thunderstorms before 11pm, then rain likely. Mostly cloudy, with a low around 54. Southwest wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Union City, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 11:09 AM PDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Union City, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 11:09 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Union City
Wednesday looks like the warmest upcoming period in Union City at 69 degrees F.
Sunday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Saturday at about 9 to 17 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 11:09 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KMUX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain likely before 11am, then showers and thunderstorms. Cloudy, with a high near 60. South southwest wind 9 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 2am, then rain likely. Mostly cloudy, with a low around 48. Chance of precipitation is 90%.
Rain likely before 11am, then showers and thunderstorms between 11am and 5pm, then a chance of rain. Mostly cloudy, with a high near 58.
A chance of rain before 11pm. Partly cloudy, with a low around 45.
Mostly sunny, with a high near 64.
Mostly clear, with a low around 46.
Sunny, with a high near 68.
Mostly clear, with a low around 47.
Mostly sunny, with a high near 69.
Partly cloudy, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday Night
Apr 10
|
Showers And Thunderstorms then Light Rain Likely
|
54°F |
8 to 13 mph
SW
|
|
Saturday
Apr 10
|
Showers And Thunderstorms
|
60°F |
9 to 17 mph
SSW
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms
|
48°F |
9 to 16 mph
SSW
|
|
Sunday
Apr 11
|
Showers And Thunderstorms
|
58°F |
9 to 13 mph
SW
|
|
Sunday Night
Apr 12
|
Chance Light Rain then Partly Cloudy
|
45°F |
6 to 13 mph
WSW
|
|
Monday
Apr 12
|
Mostly Sunny
|
64°F |
5 to 10 mph
W
|
|
Monday Night
Apr 13
|
Mostly Clear
|
46°F |
6 to 10 mph
WSW
|
|
Tuesday
Apr 13
|
Sunny
|
68°F |
5 to 9 mph
WSW
|
|
Tuesday Night
Apr 14
|
Mostly Clear
|
47°F |
6 to 9 mph
WSW
|
|
Wednesday
Apr 14
|
Mostly Sunny
|
69°F |
5 to 9 mph
WSW
|
|
Wednesday Night
Apr 15
|
Partly Cloudy
|
51°F |
6 to 9 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union City.
