Myrtle Beach Weather Forecast
- 67
- 83
Chance Thunderstorms
- 67
- 79
Mostly Cloudy
- 68
- 77
Chance Thunderstorms
- 67
- 78
Slight Chance Thunderstorms
- 67
- 80
Mostly Cloudy
- 67
- 80
Partly Sunny
Today 7 Sep Coastal Horry
Mostly cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the lower 80s. East Winds around 5 Mph. Chance of rain 50 percent.
Tonight 7 Sep Coastal Horry
Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the mid 60s. Northeast Winds 10 to 15 Mph. Chance of rain 60 percent.
Myrtle Beach Temperature Statistics
September Temperature
Myrtle Beach International Airport (1.9 miles)
Lowest 1 September, 2025
62.1 °FAverage September
74.6 °FHighest 5 September, 2025
84.9 °F
Climate (2020–Present)
Myrtle Beach International Airport (1.9 miles)
Average Low 2020–2025
58.3 °FAverage 2020–2025
65.6 °FAverage High 2020–2025
72.8 °F