Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Fair

97°F

36°C

Humidity 37%
Wind Speed W 9 mph
Barometer 29.94 in (1012.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 17 Aug 4:53 pm EDT
Extended Forecast for

Piedmont SCSimilar City Names

Heat Advisory August 17, 05:07pm until August 17, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory August 17, 05:07pm until August 17, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 74 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 96. Heat index values as high as 100. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 96 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. North northeast wind around 7 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. Heat index values as high as 101. Northeast wind 5 to 7 mph becoming calm  in the afternoon.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Thursday

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

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 8pm and 9pm. Mostly clear during the early evening, then becoming mostly cloudy, with a low around 74. West wind 5 to 10 mph becoming light west southwest after midnight. Chance of precipitation is 20%.
Tuesday
Mostly sunny and hot, with a high near 96. Heat index values as high as 100. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 72. North northeast wind around 7 mph.
Wednesday
Sunny and hot, with a high near 96. Heat index values as high as 101. Northeast wind 5 to 7 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 73. Calm wind.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Partly cloudy, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Friday Night
A 50 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69.
Saturday
Partly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 68.
Monday
Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Piedmont SCSimilar City Names
 34.71°N 82.47°W (Elev. 846 ft)
2:54 pm EDT Aug 17, 2026
5pm EDT Aug 17, 2026-6pm EDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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