National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Fair

61°F

16°C

Humidity 19%
Wind Speed SW 6 mph
Barometer 30.09 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 13 Jan 3:35 pm EST
Extended Forecast for

Union SC

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Southwest wind 5 to 7 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 56. Southwest wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 56 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am, then a chance of sprinkles between 1am and 4am. Mostly cloudy, with a low around 29. West southwest wind 7 to 9 mph becoming north northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 40. North northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 40 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 18. North northwest wind around 6 mph becoming calm in the evening.

    Low: 18 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. Southwest wind 5 to 7 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 56. Southwest wind 7 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
A slight chance of rain before 1am, then a chance of sprinkles between 1am and 4am. Mostly cloudy, with a low around 29. West southwest wind 7 to 9 mph becoming north northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 40. North northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 18. North northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Sunny, with a high near 41.
Sunday Night
Clear, with a low around 22.
M.L.King Day
Sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union SC
 34.71°N 81.62°W (Elev. 600 ft)
Last Update:
12:18 pm EST Jan 13, 2026
Forecast Valid:
3pm EST Jan 13, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation