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

Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Current conditions at

Shaw Air Force Base (KSSC)

Lat: 33.97°NLon: 80.48°WElev: 243ft.

Fair

62°F

17°C

Humidity 81%
Wind Speed Calm
Barometer 29.98 in (1015.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Oct 10:55 pm EDT
Extended Forecast for

Sumter SC

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 86. Calm wind.

    High: 86 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 78. East wind 6 to 8 mph.

    High: 78 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Cloudy, with a low around 64. Northeast wind 5 to 8 mph.

    Low: 64 °F

    Cloudy

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, then showers and possibly a thunderstorm after 8pm. Low around 67. Chance of precipitation is 100%.

    Low: 67 °F

    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. Calm wind.
Thursday
Partly sunny, with a high near 86. Calm wind.
Thursday Night
Mostly cloudy, with a low around 62. Calm wind.
Friday
Increasing clouds, with a high near 78. East wind 6 to 8 mph.
Friday Night
Cloudy, with a low around 64. Northeast wind 5 to 8 mph.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers likely, then showers and possibly a thunderstorm after 8pm. Low around 67. Chance of precipitation is 100%.
Sunday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
Sunday Night
Showers likely before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Columbus Day
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sumter SC
 33.94°N 80.37°W (Elev. 180 ft)
Last Update:
2:21 pm EDT Oct 7, 2026
Forecast Valid:
12am EDT Oct 8, 2026-6pm EDT Oct 14, 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