Union County, SC Weather Forecast
County weather hub
Chance Rain Showers then Chance Showers And Thunderstorms
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
County Weather Overview
This county weather page brings together forecast coverage for Union County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 0 of 0 mapped cities in Union County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 9 to Jun 11, 2026
- Latest sync
- Jun 5, 2026 4:10 PM EDT
- Forecast office
- GSP
- Source
- NOAA / NWS
Daily Outlook
This Week in Union County
Thursday looks like the warmest upcoming period in Union County at 89 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Tuesday at about 2 mph ENE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 5, 2026 4:10 PM EDT
- Coverage
- 3 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 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
A slight chance of rain showers between 8am and 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
84°F |
2 mph
ENE
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
66°F |
1 mph
NE
|
|
Wednesday
Jun 10
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
86°F |
2 mph
WSW
|
|
Wednesday Night
Jun 10
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
67°F |
1 mph
W
|
|
Thursday
Jun 11
|
Mostly Sunny then Chance Showers And Thunderstorms
|
89°F |
2 mph
W
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
69°F |
1 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union County.
Nearby forecast pages are not available for this location yet.
Coverage
Forecast coverage currently spans 0 of 0 mapped cities in Union County.
