Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Fair

73°F

23°C

Humidity 60%
Wind Speed SW 9 mph
Barometer 30.39 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 13 Apr 11:55 am EDT
Extended Forecast for

Union SC

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. Southwest wind around 7 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Southwest wind 3 to 8 mph.

    High: 87 °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. Southwest wind 3 to 7 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

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

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. Southwest wind around 7 mph.
Tonight
Mostly clear, with a low around 58. Calm wind.
Tuesday
Sunny, with a high near 87. Southwest wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 60. Light south southwest wind.
Wednesday
Sunny, with a high near 89. Southwest wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Union SC
 34.71°N 81.62°W (Elev. 600 ft)
6:14 am EDT Apr 13, 2026
12pm EDT Apr 13, 2026-6pm EDT Apr 19, 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