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.

Overcast

48°F

9°C

Humidity 56%
Wind Speed SE 3 mph
Barometer 30.09 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 15 Feb 5:35 am EST
Extended Forecast for

Union SC

  • Overnight

    Overnight: A 20 percent chance of rain. Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Rain, mainly before 5pm. Patchy fog between 10am and 4pm. High near 52. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 52 °F

    Rain and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain likely, mainly before 11pm. Patchy fog before midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 41. North wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain Likely
    and Patchy
    Fog then
    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 63. North northeast wind 5 to 7 mph becoming calm in the afternoon.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a low around 43. Calm wind.
Sunday
Rain, mainly before 5pm. Patchy fog between 10am and 4pm. High near 52. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
Rain likely, mainly before 11pm. Patchy fog before midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 41. North wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Washington's Birthday
Sunny, with a high near 63. North northeast wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 37. Calm wind.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 48.
Wednesday
Mostly cloudy, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Mostly cloudy, with a high near 73.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 76.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 56.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 69.
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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:
12:19 am EST Feb 15, 2026
Forecast Valid:
5am EST Feb 15, 2026-6pm EST Feb 21, 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