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

Conway Horry County Airport (KHYW)

Lat: 33.83°NLon: 79.12°WElev: 33ft.

Partly Cloudy

90°F

32°C

Humidity 49%
Wind Speed SE 6 mph
Barometer 29.96 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 31 Jul 3:55 pm EDT
Extended Forecast for

Johnsonville SC

  • Tonight

    Tonight: Mostly clear, with a low around 70. Light southeast wind.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 73. Southeast wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 90. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 71. South wind 5 to 7 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely then
    T-storms
    Likely

  • Monday Night

    Monday Night: Thunderstorms likely before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 70. Light southeast wind.
Saturday
Mostly sunny, with a high near 91. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
A chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 73. Southeast wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 90. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 71. South wind 5 to 7 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Thunderstorms likely before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnsonville SC
 33.81°N 79.46°W (Elev. 89 ft)
Last Update:
3:00 pm EDT Jul 31, 2026
Forecast Valid:
4pm EDT Jul 31, 2026-6pm EDT Aug 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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