Union, SC Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Union, SC in one place.
A chance of rain showers between 2am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Wind around 0 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Union, SC 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 6, 2026 1:37 AM EST.
The active forecast window currently covers Nov 6 to Nov 12, 2026 for Union, SC.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 1:37 AM EST
- Forecast office
- GSP
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Friday looks like the warmest upcoming period in Union at 74 degrees F.
Saturday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Saturday at about 1 to 5 mph N.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 6, 2026 1:37 AM EST
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- GSP
- Radar station
- KGSP
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 10am. Partly sunny, with a high near 74. North northwest wind around 2 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 49. North wind 0 to 3 mph.
Sunny, with a high near 69. North wind 1 to 5 mph.
Mostly clear, with a low around 39. North wind around 2 mph.
Sunny, with a high near 68.
Mostly clear, with a low around 40.
Sunny, with a high near 71.
Mostly clear, with a low around 41.
Sunny, with a high near 72.
Mostly clear, with a low around 41.
Sunny, with a high near 71.
Mostly clear, with a low around 41.
Sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 6
|
Chance Showers And Thunderstorms
|
62°F |
0 mph
|
|
Friday
Nov 6
|
Chance Showers And Thunderstorms then Partly Sunny
|
74°F |
2 mph
NNW
|
|
Friday Night
Nov 6
|
Mostly Clear
|
49°F |
0 to 3 mph
N
|
|
Saturday
Nov 7
|
Sunny
|
69°F |
1 to 5 mph
N
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
39°F |
2 mph
N
|
|
Sunday
Nov 8
|
Sunny
|
68°F |
1 mph
WNW
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
40°F |
0 mph
|
|
Monday
Nov 9
|
Sunny
|
71°F |
0 mph
|
|
Monday Night
Nov 9
|
Mostly Clear
|
41°F |
0 mph
|
|
Tuesday
Nov 10
|
Sunny
|
72°F |
0 to 3 mph
WSW
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
41°F |
0 mph
|
|
Veterans Day
Nov 11
|
Sunny
|
71°F |
0 mph
|
|
Wednesday Night
Nov 11
|
Mostly Clear
|
41°F |
1 mph
N
|
|
Thursday
Nov 12
|
Sunny
|
67°F |
2 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.
Nearby forecast pages are not available for this location yet.