Myrtle Beach (Grande Dunes Blvd) Weather Forecast
- 80
- 94
Slight Chance Thunderstorms
- 77
- 91
Chance Thunderstorms
- 74
- 86
Thunderstorms Likely
- 72
- 86
Chance Rain Showers
- 75
- 86
Chance Thunderstorms
- 76
- 88
Slight Chance Thunderstorms
Today 20 Jul Coastal Horry
Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the mid 90s. West Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 109.
Tonight 20 Jul Coastal Horry
Mostly clear. Near steady temperature in the lower 80s. Southwest Winds 5 to 10 Mph.
Myrtle Beach (Grande Dunes Blvd) Temperature Statistics
July Temperature
North Myrtle Beach Grand Strand Airport (6.2 miles)
Lowest 11 July, 2025
72.6 °FAverage July
81.5 °FHighest 16 July, 2025
88.6 °F
Climate (2020–Present)
North Myrtle Beach Grand Strand Airport (6.2 miles)
Average Low 2020–2025
57 °FAverage 2020–2025
65.2 °FAverage High 2020–2025
73.5 °F