HEAT ADVISORY – URGENT – WEATHER MESSAGE
National Weather Service Wilmington NC
7:39 PM EDT Tue Aug 18 2026
Columbus-Inland Brunswick-Coastal Brunswick-Coastal Horry-
-Central Horry-Northern Horry Counties.
Including the cities of Long Beach, Socastee, Garden City, Loris,
Southport, Myrtle Grove, Shallotte, Sunset Beach, Red Hill, Conway,
Wilmington, Oak Island, Leland, Whiteville, Murrells Inlet, Tabor City,
Carolina Beach, Myrtle Beach, North Myrtle Beach, Boiling Spring Lakes,
Chadbourn, Lake Waccamaw, and Little River
EXTREME HEAT WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING... HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT WEDNESDAY... * WHAT...Heat index values up to 109 expected. * WHERE...Portions of southeast North Carolina and northeast South Carolina. * WHEN...From 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Brunswick County Forecast
Today
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 78. Calm wind.
Thursday
Mostly sunny, with a high near 92. Heat index values as high as 106. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 78. South wind around 6 mph.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 50%.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Sunday
A chance of showers before 8am. Partly sunny, with a high near 89. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 90.
Columbus County Forecast
Tonight
A chance of showers and thunderstorms after 3pm. Patchy fog before 9am. Otherwise, sunny, with a high near 96. Heat index values as high as 107. Calm wind. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
A chance of showers and thunderstorms after 3pm. Patchy fog before 9am. Otherwise, sunny, with a high near 96. Heat index values as high as 107. Calm wind. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Heat index values as high as 107. Light south wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 94. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Saturday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 70. Chance of precipitation is 80%.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Monday
Sunny, with a high near 92.
Horry County Forecast
Tonight
Sunny, with a high near 91. Heat index values as high as 108. Calm wind becoming southeast 5 to 8 mph in the morning.
Sunny, with a high near 91. Heat index values as high as 108. Calm wind becoming southeast 5 to 8 mph in the morning.
Tonight
Partly cloudy, with a low around 79. Light south wind.
Thursday
Sunny, with a high near 91. Heat index values as high as 107. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around 78. South wind 5 to 8 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Chance of precipitation is 50%.
Saturday
A chance of showers, then showers and thunderstorms likely after 8am. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 89.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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