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

Greenville Spartanburg International Airport (KGSP)

Lat: 34.91°NLon: 82.21°WElev: 955ft.

Fair

64°F

18°C

Humidity 73%
Wind Speed S 6 mph
Barometer 30.23 in (1023.0 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 4 Mar 8:53 pm EST
Extended Forecast for

Duncan SCSimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 53. Southwest wind 3 to 5 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Light south southwest wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 58. South southwest wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: A chance of rain, with thunderstorms also possible after 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the morning. Chance of precipitation is 30%.

    High: 80 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: A slight chance of rain and thunderstorms before 7pm, then a slight chance of rain after 2am. Partly cloudy, with a low around 60. Light south southwest wind. Chance of precipitation is 20%.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain before 1pm, then a chance of rain and thunderstorms between 1pm and 4pm, then rain likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.

    High: 80 °F

    Mostly Cloudy
    then Rain
    Likely

  • Sunday Night

    Sunday Night: A chance of rain before 10pm, then a chance of rain after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.

    Low: 58 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 53. Southwest wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 77. Light south southwest wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 58. South southwest wind around 5 mph becoming calm in the evening.
Friday
A chance of rain, with thunderstorms also possible after 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the morning. Chance of precipitation is 30%.
Friday Night
A slight chance of rain and thunderstorms before 7pm, then a slight chance of rain after 2am. Partly cloudy, with a low around 60. Light south southwest wind. Chance of precipitation is 20%.
Saturday
A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 61.
Sunday
A chance of rain before 1pm, then a chance of rain and thunderstorms between 1pm and 4pm, then rain likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Sunday Night
A chance of rain before 10pm, then a chance of rain after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Monday
A 50 percent chance of rain. Mostly cloudy, with a high near 79.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Rain likely. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Duncan SCSimilar City Names
 34.93°N 82.14°W (Elev. 781 ft)
Last Update:
6:49 pm EST Mar 4, 2026
Forecast Valid:
9pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
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Additional Resources

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