Union, SC Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union, SC in one place.
Sunny, with a high near 87. Southwest wind 5 to 15 mph.
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: Oct 15, 2026 5:49 PM EDT.
The active forecast window currently covers Oct 16 to Oct 21, 2026 for Union, SC.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 5:49 PM EDT
- Forecast office
- CAE
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Friday looks like the warmest upcoming period in Union at 87 degrees F.
Saturday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Saturday at about 15 to 21 mph N.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 5:49 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- CAE
- Radar station
- KCAE
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers after 5am. Partly cloudy, with a low around 52. West wind 8 to 15 mph. Chance of precipitation is 30%.
A chance of rain showers before 2pm. Mostly sunny, with a high near 63. North wind 15 to 21 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 42. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 60.
Clear, with a low around 43.
Sunny, with a high near 67.
Mostly clear, with a low around 47.
Sunny, with a high near 72.
Mostly clear, with a low around 48.
Sunny, with a high near 73.
Clear, with a low around 48.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Sunny
|
87°F |
5 to 15 mph
SW
|
|
Friday Night
Oct 16
|
Partly Cloudy then Chance Rain Showers
|
52°F |
8 to 15 mph
W
|
|
Saturday
Oct 17
|
Chance Rain Showers
|
63°F |
15 to 21 mph
N
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
42°F |
9 to 17 mph
N
|
|
Sunday
Oct 18
|
Sunny
|
60°F |
12 to 16 mph
NE
|
|
Sunday Night
Oct 18
|
Clear
|
43°F |
7 to 13 mph
NE
|
|
Monday
Oct 19
|
Sunny
|
67°F |
12 mph
NE
|
|
Monday Night
Oct 19
|
Mostly Clear
|
47°F |
5 to 9 mph
NE
|
|
Tuesday
Oct 20
|
Sunny
|
72°F |
7 to 10 mph
N
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
48°F |
7 mph
N
|
|
Wednesday
Oct 21
|
Sunny
|
73°F |
6 to 9 mph
NE
|
|
Wednesday Night
Oct 21
|
Clear
|
48°F |
3 to 7 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.