North Myrtle Beach, South Carolina

Last updated: 6:55 PM CDT · Refresh

29°C

Feels like 34°

Mostly Clear

▲ 32° / ▼ 28°

Wind

20 mph SSW

Humidity

76%

Dew Point

25°

Pressure

29.93 inHg

Visibility

10 mi

UV Index

1.3

Cloud Cover

27%

Sunrise

6:18 AM

Sunset

8:23 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: North Myrtle Beach is currently mostly clear at 29°C. Precipitation is likely — peak probability 52% around 8 AM. Atmospheric instability is elevated (CAPE up to 2923 J/kg) — isolated convective development possible. Sunrise: 6:18AM · Sunset: 8:23PM.

38 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

29°

8 PM

30°

26%

9 PM

29°

26%

10 PM

29°

26%

11 PM

29°

26%

12 AM

29°

26%

1 AM

28°

21%

2 AM

28°

17%

3 AM

28°

18%

4 AM

28°

18%

5 AM

28°

34%

6 AM

28°

42%

7 AM

29°

51%

8 AM

29°

51%

9 AM

30°

38%

10 AM

31°

39%

11 AM

31°

29%

12 PM

31°

20%

1 PM

32°

16%

2 PM

32°

16%

3 PM

32°

17%

4 PM

32°

17%

5 PM

31°

11%

6 PM

31°

7-Day Forecast

Tonight

32° 28°

Mostly Clear with a 26% chance of rain.

Wed

33° 28°

Rain, 51% chance.

Thu

32° 27°

Rain, 77% chance.

Fri

30° 26°

Mostly Cloudy with a 79% chance of rain.

Sat

29° 24°

Rain, 90% chance.

Sun

32° 23°

Rain, 78% chance.

Mon

33° 24°

Drizzle, 60% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 29° Mostly Clear 5% 20 mph SSW 76%

8 PM 30° Partly Cloudy 26% 19 mph SSW 76%

9 PM 29° Partly Cloudy 26% 19 mph SSW 78%

10 PM 29° Mostly Cloudy 26% 20 mph SSW 79%

11 PM 29° Mostly Cloudy 26% 20 mph SSW 80%

12 AM 29° Mostly Cloudy 26% 20 mph SSW 80%

1 AM 28° Mostly Cloudy 21% 19 mph SSW 81%

2 AM 28° Overcast 17% 18 mph SSW 81%

3 AM 28° Overcast 18% 17 mph SSW 82%

4 AM 28° Overcast 18% 16 mph SSW 82%

5 AM 28° Overcast 34% 16 mph SSW 82%

6 AM 28° Overcast 42% 16 mph SSW 81%

7 AM 29° Rain 51% 15 mph SSW 80%

8 AM 29° Overcast 51% 15 mph SSW 78%

9 AM 30° Mostly Cloudy 38% 15 mph SSW 75%

10 AM 31° Mostly Cloudy 39% 16 mph SSW 73%

11 AM 31° Mostly Cloudy 29% 17 mph SSW 72%

12 PM 31° Mostly Cloudy 20% 18 mph SSW 70%

1 PM 32° Partly Cloudy 16% 19 mph SSW 70%

2 PM 32° Partly Cloudy 16% 19 mph SSW 71%

3 PM 32° Partly Cloudy 17% 18 mph SSW 72%

4 PM 32° Partly Cloudy 17% 18 mph SSW 74%

5 PM 31° Mostly Cloudy 11% 18 mph SSW 75%

6 PM 31° Partly Cloudy 9% 19 mph S 77%

15-Day Forecast

Today

7/21

Mostly Clear

26%

28°

32°

Wed

7/22

Rain

51%

28°

33°

Thu

7/23

Rain

77%

27°

32°

Fri

7/24

Mostly Cloudy

79%

26°

30°

Sat

7/25

Rain

90%

24°

29°

Sun

7/26

Rain

78%

23°

32°

Mon

7/27

Drizzle

60%

24°

33°

Tue

7/28

Drizzle

63%

26°

33°

Wed

7/29

Thunderstorm

90%

24°

32°

Thu

7/30

Drizzle

60%

24°

31°

Fri

7/31

Drizzle

60%

24°

31°

Sat

8/1

Drizzle

60%

24°

31°

Sun

8/2

Drizzle

60%

24°

31°

Mon

8/3

Drizzle

60%

24°

32°

Tue

8/4

Drizzle

60%

24°

32°

Good

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

38 AQI 6.9 µg/m³

O₃

Ground-level ozone

31 AQI 35 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Wed 38 Good 31 38

Thu 33 Good 33 32

Fri 32 Good 32 18

About the Air Quality Index

0–50 Good

51–100 Moderate

101–150 Unhealthy for Sensitive Groups

151–200 Unhealthy

201–300 Very Unhealthy

301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Tue Jul 21, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE2737 J/kg

MLCAPE835 J/kg

MUCAPE2737 J/kg

SBCIN-62 J/kg

MLCIN0 J/kg

Lifted Index-7.5

Kinematics

0–6 km Shear15 kt

0–1 km Shear13 kt

Eff. Shear23 kt

0–1 km SRH-9

0–3 km SRH-8

Eff. SRH-8

Storm Motion217° @ 38 kt

0–1 km EHI-0.2

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index18.7

Thermo & Levels

PWAT1.50 in

0–3 km LR5.8 °C/km

700–500 LR6.3 °C/km

Total Totals38.6

LCL953 hPa

LFC840 hPa

EL140 hPa

Freezing Lvl16,250 ft

North Myrtle Beach, South Carolina

Alerts