Sunshine All Week, Then Fall Finally Shows Up: Your Grand Strand Forecast for Oct. 12–18

Posted Monday, October 12, 2026 10:22 am

David Hucks (via MyrtleBeachSC)

Myrtle Beach News · Weather

The weekend gave the Carolinas a reminder of how far a Gulf hurricane can reach. The leftovers of Hurricane Isaias spun up tornadoes across southeastern North Carolina on Sunday, and forecasters had been counting on a soaking rain to take a bite out of a drought that has dragged on for months [NWS Wilmington, 2026]. Monday morning, though, the Grand Strand woke up to something entirely different: clear skies and a seven-day forecast with almost nothing in it but sun. This leads us to your Grand Strand Forecast for the upcoming week.

The National Weather Service office in Wilmington, which forecasts for Horry and Georgetown counties, expects sunny skies from Monday through Friday with afternoon highs right around 80 degrees. A front arriving Friday night is then expected to knock weekend highs down into the mid-60s and push overnight lows close to 50 — the first genuinely fall-like stretch many of us have felt this season [NWS Wilmington, 2026].

For most people, that adds up to one of the best weeks of the year to be outside in Horry County. But it’s worth reading the forecast alongside the other numbers the Weather Service has been publishing this month. A string of dry, sunny days lands on top of a severe drought, low rivers and water-conservation rules in parts of our area. The story this week is both the weather we get to enjoy and the conditions it’s arriving into.

Your Grand Strand Forecast: A Week of Sunshine

Monday Through Friday: Warm Afternoons, Easy Nights

The weekday pattern is about as steady as coastal forecasts get. The Weather Service calls for sunshine every day from Monday through Friday, with highs of roughly 80 on Monday, 79 Tuesday, 80 Wednesday and Thursday, and 81 on Friday. Overnight lows should sit in the mid-to-upper 60s, between about 66 and 69, under clear or mostly clear skies. Rain doesn’t appear anywhere in the weekday forecast [NWS Wilmington, 2026].

Winds tell a quieter story after Monday. Monday brings a west wind of 11 to 13 mph with gusts near 18, the tail end of the weekend’s system pulling away. By Monday evening the wind is expected to go nearly calm, and Tuesday starts light and variable before turning onshore from the east at around 5 mph in the afternoon [NWS Wilmington, 2026].

Here’s what that means on the ground. Light winds and clear skies are the recipe for calm mornings on the water, comfortable afternoons on the golf course, and cool, damp starts. Before sunrise Monday, the reading at Myrtle Beach International Airport was 66 degrees with humidity at 87 percent [NWS Wilmington, 2026]. Expect dewy windshields and lawns early, and a fast warm-up once the sun gets going.

It’s also worth being honest about the word “cool.” Highs near 80 in mid-October are warm by most people’s standards. What makes the week feel pleasant is the combination: no rain, light breezes, and nights in the 60s instead of the sticky 70s we lived with all summer. Locals who work outdoors — roofers, landscapers, crews on the road projects all over the county — get a dry, predictable week to make up ground lost to the weekend weather.

That steadiness doesn’t last all the way to Sunday, though, and the change is worth planning around.

The Weekend Turn: Fall Arrives Friday Night

The biggest weather event of the week comes after dark on Friday. The Weather Service expects Friday’s high near 81 to give way to a windy night with a low around 60. Saturday is forecast to be mostly sunny but breezy with a high near 65, Saturday night drops to about 51, and Sunday stays sunny and breezy with a high near 64 [NWS Wilmington, 2026].

That’s a drop of roughly 16 degrees in daytime highs from Friday to Saturday. A swing that sharp catches people off guard, especially those who planned a weekend around the summer-like weekdays. A few practical takeaways:

Dress for two seasons. Friday night football and Saturday morning events will start in a different season than the one Friday afternoon ended in. Bring layers.
Check on the vulnerable. Older neighbors, people living in campers or poorly insulated homes, and outdoor pets will feel a night near 50 after weeks of warm ones.
Expect your heat to kick on. For many households, this weekend may be the first time the heat pump runs this fall. A quick filter change now beats a musty smell later.

One caution: the Saturday and Sunday numbers sit at the far end of the forecast window, where details are less certain than they are for Tuesday or Wednesday. The overall picture of a cooler, breezier weekend is the part to plan around. The exact low on Saturday night may shift by a few degrees as the week goes on.

To understand why this week looks so clean, it helps to look back at what just moved through.

What Came Through This Weekend

Isaias made landfall near Pensacola, Florida, on Oct. 9 with destructive winds and a large storm surge. It weakened as it moved inland on Oct. 10 and dropped heavy rain that caused flooding in the mountains of western North Carolina [NWS Wilmington, 2026].

On Sunday, Oct. 11, tornadoes formed across central and eastern North Carolina along a line of converging winds that swept east across the state. In the Wilmington office’s coverage area, survey teams confirmed an EF-0 tornado near East Arcadia in Bladen County. It was on the ground for about 1.7 miles with peak winds near 75 mph and a path roughly 235 yards wide, snapping and uprooting trees. The office also planned additional storm surveys near Clarendon in Columbus County on Monday [NWS Wilmington, 2026].

The Weather Service’s summary page, as last updated, does not list any tornado damage in Horry or Georgetown counties. Still, Columbus County sits right across the state line from Horry, and Sunday’s storms are a useful reminder that a hurricane landing on the Gulf Coast can still produce severe weather a few counties away from us two days later. If you saw storm damage over the weekend, the Weather Service takes public reports through its website.

The weekend’s rain also matters for a reason that has nothing to do with tornadoes.

The Drought Doesn’t Disappear Because the Sun Is Out

In its Drought Information Statement issued Oct. 9, the Weather Service reported that extreme drought had ended in our part of the Carolinas. It also said moderate to severe drought continued across most of the region, and it placed both Horry and Georgetown counties in the “severe” drought category (D2) [NWS Wilmington, 2026].

The same statement shows how dry things have been. Rainfall over the prior two weeks averaged only 30 to 40 percent of normal across the region, while Myrtle Beach came in closer to 75 percent. The effects are concrete:

The Waccamaw ran low enough for the ocean to push upstream. On Sept. 28, low flow let salt water move unusually far up the Waccamaw River, temporarily shutting down the water intake for the Georgetown County Water & Sewer District. Local officials said salinity was the highest seen in 20 years.
Rivers are near record-low territory. Flow on the Waccamaw at Freeland and on the Little Pee Dee at Galivants Ferry was near the 5th percentile for the date.
Water rules are in effect. Loris officials confirmed mandatory conservation measures on the city’s water system, and voluntary conservation continues in Georgetown [NWS Wilmington, 2026].

Before the weekend, the Weather Service expected Isaias’s moisture to deliver 3 to 5 inches of rain along the coast, with local totals of 6 to 8 inches possible, mostly on Saturday and Sunday [NWS Wilmington, 2026]. How much actually fell in your neighborhood determines how this sunny week should be read. If the rain came through as forecast, a dry week is just a pleasant break. If totals fell short, seven or more straight rain-free days extend the stress on rivers, wells, crops and lawns.

There’s also the fire question. The days just behind a cold front tend to be the driest and breeziest of the week, and the forecast already calls for a breezy Saturday and Sunday. Anyone planning a yard-debris burn this weekend should check with the S.C. Forestry Commission first.

Looking further out, the outlook is more encouraging. The Weather Service noted that October outlooks leaned slightly toward above-normal rainfall, temperatures had equal chances of being above, near or below normal, and the seasonal outlook through December expected drought conditions to improve across eastern North and South Carolina. The next drought update is due by Oct. 16 [NWS Wilmington, 2026].

With that context in mind, here’s how to get the most out of the week.

Making the Most of It

At the beach. The Weather Service’s most recent surf zone forecast for coastal Horry, issued last week, put ocean temperatures in the mid-70s [NWS Wilmington, 2026]. That’s warmer than the air will be this weekend. Lifeguard coverage is reduced or gone for the season along much of the Strand, so swim near others. Remember the Weather Service’s standing warning that dangerous rip currents often form near piers, jetties and groins even on low-risk days [NWS Wilmington, 2026].

In the sun. Clear skies in October still carry real UV exposure. Last week’s surf zone forecast rated the UV index “High” on sunny days [NWS Wilmington, 2026]. Sunscreen is still a good idea, especially early in the week.

In the yard. If you’re on a system with conservation rules, a dry, sunny week is when those rules matter most. Water early in the morning, when less is lost to evaporation, and follow whatever schedule your provider has set.

On the calendar. If you have flexibility, the middle of the week — Tuesday through Thursday — offers the calmest, most predictable conditions. Save the bonfire, chili or first-sweater plans for the weekend.

The Bottom Line

This is the kind of week that reminds people why they moved here: five straight days of sunshine near 80, comfortable nights, and a crisp weekend that finally feels like October [NWS Wilmington, 2026]. Enjoy it.

But the same forecast that makes the week so pleasant is also a forecast without rain, in two counties the Weather Service still lists in severe drought, with a river that recently pushed salt water into a public water intake [NWS Wilmington, 2026]. The two things to watch are the Weather Service’s drought update due by Oct. 16 and whether the weekend cold front brings any surprise moisture with it. We’ll keep tracking both.