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

64°F

18°C

Humidity 94%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 May 5:35 am EDT
Extended Forecast for

Union SC

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.

    High: 89 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.

    High: 89 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63. Light south southeast wind.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 64. Calm wind.
Monday
Partly sunny, then gradually becoming sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Clear, with a low around 63. Light south southeast wind.
Tuesday
Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.
Thursday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Low around 62. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union SC
 34.71°N 81.62°W (Elev. 600 ft)
Last Update:
2:24 am EDT May 17, 2026
Forecast Valid:
5am EDT May 17, 2026-6pm EDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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