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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Greenville Spartanburg International Airport (KGSP)

Lat: 34.91°NLon: 82.21°WElev: 955ft.

Overcast

62°F

17°C

Humidity 90%
Wind Speed NE 8 mph
Barometer 30.18 in (1021.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Oct 10:53 am EDT
Extended Forecast for

Duncan SC

  • Today

    Today: A 30 percent chance of showers, mainly after 4pm. Cloudy, with a high near 72. Northeast wind around 6 mph becoming calm in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 10pm. Patchy fog after midnight. Otherwise, cloudy, with a low around 62. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 52. Calm wind becoming north northeast 5 to 7 mph after midnight.

    Low: 52 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. East northeast wind 8 to 11 mph.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly after 4pm. Cloudy, with a high near 72. Northeast wind around 6 mph becoming calm in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 30 percent chance of showers, mainly before 10pm. Patchy fog after midnight. Otherwise, cloudy, with a low around 62. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Monday
Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming northeast 5 to 7 mph in the morning.
Monday Night
Clear, with a low around 52. Calm wind becoming north northeast 5 to 7 mph after midnight.
Tuesday
Sunny, with a high near 73. East northeast wind 8 to 11 mph.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 52.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Duncan SC
 34.93°N 82.14°W (Elev. 781 ft)
Last Update:
8:03 am EDT Oct 4, 2026
Forecast Valid:
10am EDT Oct 4, 2026-6pm EDT Oct 10, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation