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

Hazardous Weather Conditions

Current conditions at

Sylvania, Plantation Airpark (KJYL)

Lat: 32.65°NLon: 81.6°WElev: 187ft.

Haze

93°F

34°C

Humidity 51%
Wind Speed NW 6 mph
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 5.00 mi
Heat Index101°F (38°C)
Last update 17 Aug 3:15 pm EDT
Extended Forecast for

9 Miles SW Allendale SC

Heat Advisory August 18, 11:00am until August 18, 08:00pm
Heat Advisory August 17, 03:39pm until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
...
  •  
    Heat Advisory August 17, 03:39pm until August 17, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. Heat index values as high as 107. Light west wind.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97. Heat index values as high as 103. Calm wind.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95.

    High: 95 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Calm wind.
Tuesday
Sunny, with a high near 97. Heat index values as high as 107. Light west wind.
Tuesday Night
Mostly clear, with a low around 75. Calm wind.
Wednesday
Sunny, with a high near 97. Heat index values as high as 103. Calm wind.
Wednesday Night
Mostly clear, with a low around 75. Calm wind.
Thursday
Sunny, with a high near 98.
Thursday Night
Mostly clear, with a low around 74.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95.
Friday Night
A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SW Allendale SC
 32.92°N 81.43°W (Elev. 105 ft)
Last Update:
3:07 pm EDT Aug 17, 2026
Forecast Valid:
3pm EDT Aug 17, 2026-6pm EDT Aug 24, 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