Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Fair

80°F

27°C

Humidity 90%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 14 Aug 7:35 pm EDT
Extended Forecast for

4 Miles S Union SC

Heat Advisory August 15, 11:00am until August 15, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Sunny and hot, with a high near 96. Heat index values as high as 104. Calm wind.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 3pm.  Mostly sunny and hot, with a high near 96. Heat index values as high as 104. Calm wind.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 74. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny and hot, with a high near 96. Heat index values as high as 104. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 74. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 104. Calm wind.
Sunday Night
Mostly clear, with a low around 74. Calm wind.
Monday
Sunny and hot, with a high near 97.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny and hot, with a high near 95.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 72.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Union SC
 34.66°N 81.63°W (Elev. 499 ft)
6:54 pm EDT Aug 14, 2026
7pm EDT Aug 14, 2026-6pm EDT Aug 21, 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