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

Hazardous Weather Conditions

Current conditions at

Myrtle Beach International Airport (KMYR)

Lat: 33.68°NLon: 78.93°WElev: 25ft.

Fair

81°F

27°C

Humidity 82%
Wind Speed Calm
Barometer 29.88 in (1011.9 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Aug 3:53 am EDT
Extended Forecast for

Myrtle Beach SC

Heat Advisory August 19, 11:00am until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 88. Heat index values as high as 103. Light and variable wind becoming south 5 to 9 mph in the morning.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 81. South wind around 5 mph becoming calm in the evening.

    Low: 81 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 88. Heat index values as high as 103. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 80. South wind 6 to 9 mph.

    Low: 80 °F

    Partly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Light south wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Sunny then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 78. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 78 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 86. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 76. Chance of precipitation is 80%.

    Low: 76 °F

    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 88. Heat index values as high as 103. Light and variable wind becoming south 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 81. South wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 88. Heat index values as high as 103. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 80. South wind 6 to 9 mph.
Friday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Light south wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 78. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 86. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 76. Chance of precipitation is 80%.
Sunday
A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Myrtle Beach SC
 33.69°N 78.88°W (Elev. 0 ft)
Last Update:
3:00 am EDT Aug 19, 2026
Forecast Valid:
4am EDT Aug 19, 2026-6pm EDT Aug 25, 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