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.

Thunderstorm Heavy Rain

76°F

24°C

Humidity 100%
Wind Speed W 13 G 35 mph
Barometer 30.04 in
Dewpoint 76°F (24°C)
Visibility 1.25 mi
Heat Index75°F (24°C)
Last update 16 Aug 5:35 pm EDT
Extended Forecast for

3 Miles SSE Allendale SC

Heat Advisory August 17, 11:00am until August 17, 08:00pm
Heat Advisory August 16, 05:46pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory August 16, 05:46pm until August 16, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. Calm wind becoming southeast around 5 mph.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 98. Heat index values as high as 105. Light west wind.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Calm wind.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Heat index values as high as 102. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. Calm wind becoming southeast around 5 mph.
Monday
Sunny, with a high near 98. Heat index values as high as 105. Light west wind.
Monday Night
Mostly clear, with a low around 77. Calm wind.
Tuesday
Sunny, with a high near 98. Calm wind.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Saturday Night
A 40 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 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Allendale SC
 32.96°N 81.31°W (Elev. 128 ft)
Last Update:
3:17 pm EDT Aug 16, 2026
Forecast Valid:
5pm EDT Aug 16, 2026-6pm EDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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