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 70.
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 19, 2026 6:40 PM PDT.
The active forecast window currently covers Apr 23 to Apr 25, 2026 for Union City, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 25, 2026
- Latest sync
- Apr 19, 2026 6:40 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 72 degrees F.
Thursday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Thursday at about 5 to 12 mph W.
The forecast from Apr 23 through Apr 25 stays mostly dry.
Forecast Details
- Last updated
- Apr 19, 2026 6:40 PM PDT
- Coverage
- 4 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 49.
Sunny, with a high near 72.
Partly cloudy, with a low around 51.
Mostly sunny, with a high near 69.
Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Sunny
|
70°F |
5 to 12 mph
W
|
|
Thursday Night
Apr 23
|
Mostly Clear
|
49°F |
6 to 12 mph
WSW
|
|
Friday
Apr 24
|
Sunny
|
72°F |
6 to 12 mph
WSW
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
51°F |
7 to 12 mph
WSW
|
|
Saturday
Apr 25
|
Mostly Sunny
|
69°F |
7 to 12 mph
WSW
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
52°F |
7 to 12 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union City.
