Union, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union, CA in one place.
Sunny, with a high near 74. Northeast wind around 10 mph.
Local Weather Overview
This forecast page for Union, 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: Nov 4, 2026 1:03 PM PST.
The active forecast window currently covers Nov 6 to Nov 10, 2026 for Union, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 10, 2026
- Latest sync
- Nov 4, 2026 1:03 PM PST
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Saturday looks like the warmest upcoming period in Union at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Friday Night at about 5 to 15 mph NE.
The forecast from Nov 6 through Nov 10 stays mostly dry.
Forecast Details
- Last updated
- Nov 4, 2026 1:03 PM PST
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- LOX
- Radar station
- KVBX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 47.
Sunny, with a high near 82.
Clear, with a low around 46.
Sunny, with a high near 80.
Mostly clear, with a low around 46.
Mostly sunny, with a high near 79.
Partly cloudy, with a low around 48.
Sunny, with a high near 77.
Mostly clear, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Sunny
|
74°F |
10 mph
NE
|
|
Friday Night
Nov 6
|
Clear
|
47°F |
5 to 15 mph
NE
|
|
Saturday
Nov 7
|
Sunny
|
82°F |
0 to 5 mph
E
|
|
Saturday Night
Nov 7
|
Clear
|
46°F |
0 to 5 mph
ENE
|
|
Sunday
Nov 8
|
Sunny
|
80°F |
0 to 5 mph
ENE
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
46°F |
0 to 5 mph
ENE
|
|
Monday
Nov 9
|
Mostly Sunny
|
79°F |
0 to 5 mph
NE
|
|
Monday Night
Nov 9
|
Partly Cloudy
|
48°F |
0 to 5 mph
ENE
|
|
Tuesday
Nov 10
|
Sunny
|
77°F |
0 to 10 mph
NE
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
47°F |
0 to 10 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.