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

Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Fair

76°F

24°C

Humidity 84%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 14 Jul 2:35 am EDT
Extended Forecast for

3 Miles SSW Union SC

  • Overnight

    Overnight: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 96. Heat index values as high as 102. Calm wind.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly between 7pm and midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 73. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 91. Light south southeast wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Patchy Fog
    then T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 90.

    High: 90 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 72. Calm wind.
Monday
Sunny and hot, with a high near 96. Heat index values as high as 102. Calm wind.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly between 7pm and midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 73. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 91. Light south southeast wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73.
Friday
A 30 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Union SC
 34.69°N 81.65°W (Elev. 499 ft)
Last Update:
1:28 am EDT Jul 14, 2025
Forecast Valid:
2am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
 
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