Union City, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union City, CA in one place.
Sunny, with a high near 86. West southwest wind 7 to 14 mph, with gusts as high as 21 mph.
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: Jun 3, 2026 2:54 PM PDT.
The active forecast window currently covers Jun 5 to Jun 9, 2026 for Union City, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 5 to Jun 9, 2026
- Latest sync
- Jun 3, 2026 2:54 PM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Union City
Friday looks like the warmest upcoming period in Union City at 86 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Friday Night at about 12 to 17 mph SW.
The forecast from Jun 5 through Jun 9 stays mostly dry.
Forecast Details
- Last updated
- Jun 3, 2026 2:54 PM 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
Mostly clear, with a low around 58.
Sunny, with a high near 78.
Mostly clear, with a low around 53.
Sunny, with a high near 78.
Mostly clear, with a low around 54.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 56.
Sunny, with a high near 77.
Mostly clear, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jun 5
|
Sunny
|
86°F |
7 to 14 mph
WSW
|
|
Friday Night
Jun 5
|
Mostly Clear
|
58°F |
12 to 17 mph
SW
|
|
Saturday
Jun 6
|
Sunny
|
78°F |
14 mph
SW
|
|
Saturday Night
Jun 6
|
Mostly Clear
|
53°F |
8 to 15 mph
SW
|
|
Sunday
Jun 7
|
Sunny
|
78°F |
7 to 14 mph
SW
|
|
Sunday Night
Jun 7
|
Mostly Clear
|
54°F |
14 mph
SW
|
|
Monday
Jun 8
|
Mostly Sunny
|
76°F |
10 to 14 mph
SW
|
|
Monday Night
Jun 8
|
Partly Cloudy
|
56°F |
9 to 15 mph
WSW
|
|
Tuesday
Jun 9
|
Sunny
|
77°F |
9 to 14 mph
WSW
|
|
Tuesday Night
Jun 9
|
Mostly Clear
|
56°F |
7 to 14 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union City.
