Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Fair

78°F

26°C

Humidity 76%
Wind Speed SW 3 mph
Barometer 30.05 in (1016.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 4 Sep 4:53 am EDT
Extended Forecast for

Gantt SC

  • Today

    Today: Sunny and hot, with a high near 96. Heat index values as high as 102. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 74. South southeast wind around 5 mph becoming light and variable  after midnight.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Increasing clouds and hot, with a high near 98. Heat index values as high as 102. Light west wind.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight.  Partly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 93. Northeast wind 5 to 7 mph.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Labor Day

    Labor Day: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny and hot, with a high near 96. Heat index values as high as 102. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 74. South southeast wind around 5 mph becoming light and variable after midnight.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Increasing clouds and hot, with a high near 98. Heat index values as high as 102. Light west wind.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Northeast wind 5 to 7 mph.
Sunday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Labor Day
Partly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Gantt SC
 34.79°N 82.38°W (Elev. 899 ft)
2:23 am EDT Sep 4, 2026
5am EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
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