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 87%
Wind Speed NW 3 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Aug 5:53 am EDT
Extended Forecast for

Myrtle Beach SC

Heat Advisory August 15, 11:00am until August 15, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 105. South wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 80. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 80 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 88. Heat index values as high as 104. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 81. Southwest wind around 7 mph.

    Low: 81 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 93. South wind 6 to 10 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 82.

    Low: 82 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 81. Chance of precipitation is 30%.

    Low: 81 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 105. South wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 80. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 88. Heat index values as high as 104. Calm wind becoming south 5 to 9 mph in the afternoon. 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 81. Southwest wind around 7 mph.
Monday
Sunny, with a high near 93. South wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 82.
Tuesday
Sunny, with a high near 91.
Tuesday Night
A chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 81.
Thursday
Mostly sunny, with a high near 89.
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 87. 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 78.88°W (Elev. 0 ft)
Last Update:
6:00 am EDT Aug 15, 2026
Forecast Valid:
6am EDT Aug 15, 2026-6pm EDT Aug 21, 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