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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Mostly Cloudy

84°F

29°C

Humidity 25%
Wind Speed SW 3 mph
Barometer 30.31 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 12 Apr 6:15 pm EDT
Extended Forecast for

Union SC

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind around 6 mph becoming calm.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 82 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 58. Calm wind.

    Low: 58 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 86. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. Light south southwest wind.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 57. South wind around 6 mph becoming calm.
Monday
Partly sunny, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 58. Calm wind.
Tuesday
Sunny, with a high near 86. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 60. Light south southwest wind.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
Partly sunny, with a high near 86.
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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:
2:24 pm EDT Apr 12, 2026
Forecast Valid:
6pm EDT Apr 12, 2026-6pm EDT Apr 19, 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