Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Fair

92°F

33°C

Humidity 49%
Wind Speed NW 5 mph
Barometer 30.10 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Heat Index98°F (37°C)
Last update 11 Aug 1:35 pm EDT
Extended Forecast for

Union SC

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 95. Heat index values as high as 100. Light west wind.

    High: 95 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 95. Heat index values as high as 101. Calm wind becoming west around 5 mph in the afternoon.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 96. Calm wind.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 95. Heat index values as high as 100. Light west wind.
Tonight
Partly cloudy, with a low around 73. Calm wind.
Wednesday
Mostly sunny and hot, with a high near 95. Heat index values as high as 101. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 73. Calm wind.
Thursday
Mostly sunny and hot, with a high near 96. Calm wind.
Thursday Night
Partly cloudy, with a low around 75.
Friday
Mostly sunny and hot, with a high near 97.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Mostly sunny, with a high near 93.
Saturday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 74.
Monday
Mostly sunny and hot, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
Union SC
 34.73°N 81.62°W (Elev. 600 ft)
2:23 am EDT Aug 11, 2026
1pm EDT Aug 11, 2026-6pm EDT Aug 17, 2026
 
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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