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

80°F

27°C

Humidity 90%
Wind Speed NW 3 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 15 Aug 7:53 pm EDT
Extended Forecast for

Myrtle Beach SC

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

  • Tonight

    Tonight: Mostly cloudy, with a low around 79. Southwest wind around 5 mph becoming calm in the evening.

    Low: 79 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 79. South wind around 6 mph.

    Low: 79 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 94. Heat index values as high as 111. Southwest wind 5 to 11 mph, with gusts as high as 17 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 80. Southwest wind 5 to 9 mph, with gusts as high as 16 mph.

    Low: 80 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Chance of precipitation is 20%.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 79. Chance of precipitation is 30%.

    Low: 79 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 79. Chance of precipitation is 30%.

    Low: 79 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 79. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 79. South wind around 6 mph.
Monday
Sunny, with a high near 94. Heat index values as high as 111. Southwest wind 5 to 11 mph, with gusts as high as 17 mph.
Monday Night
Mostly clear, with a low around 80. Southwest wind 5 to 9 mph, with gusts as high as 16 mph.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 79. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 79. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 90.
Thursday Night
A chance of showers. Partly cloudy, with a low around 79. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Chance of precipitation is 50%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Myrtle Beach SC
 33.69°N 78.9°W (Elev. 23 ft)
Last Update:
6:55 pm EDT Aug 15, 2026
Forecast Valid:
8pm EDT Aug 15, 2026-6pm EDT Aug 22, 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