Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

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 thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

Greenville Spartanburg International Airport (KGSP)

Lat: 34.91°NLon: 82.21°WElev: 955ft.

Partly Cloudy

83°F

28°C

Humidity 79%
Wind Speed S 6 mph
Barometer 30.04 in (1016.0 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 16 Aug 9:53 pm EDT
Extended Forecast for

Duncan SCSimilar City Names

Heat Advisory August 17, 12:00pm until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 74. Light west wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 102. Light north wind.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. North northeast wind 3 to 5 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

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

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.  Partly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Light west wind.
Monday
Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming west southwest around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 75. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94. Heat index values as high as 102. Light north wind.
Tuesday Night
Partly cloudy, with a low around 72. North northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 89.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Duncan SCSimilar City Names
 34.93°N 82.14°W (Elev. 781 ft)
8:33 pm EDT Aug 16, 2026
10pm EDT Aug 16, 2026-6pm EDT Aug 23, 2026
 
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Additional Resources

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