Heat Advisory — Robeson, NC, Bladen, NC, Columbus, NC, Inland Pender, NC, Coastal Pender, NC, Inland New Hanover, NC, Coastal New Hanover, NC, Inland Brunswick, NC, Coastal Brunswick, NC, Marlboro, SC, Dillon, SC, Marion, SC, Coastal Horry, SC, Central Horry, SC, Northern Horry, SC 6:00 PM

Marion County, South Carolina, United States

Last updated: 5:31 PM CDT  ·  Refresh
33°C
Feels like 36°
Partly Cloudy
▲ 34°  /  ▼ 25°
Wind
12 mph SSW
Humidity
43%
Dew Point
20°
Pressure
29.83 inHg
Visibility
10 mi
UV Index
4.7
Cloud Cover
32%
Sunrise
6:21 AM
Sunset
8:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marion County is currently partly cloudy at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1972 J/kg) — isolated convective development possible. Sunrise: 6:21AM · Sunset: 8:26PM.

Alerts

Heat Advisory
Robeson, NC, Bladen, NC, Columbus, NC, Inland Pender, NC, Coastal Pender, NC, Inland New Hanover, NC, Coastal New Hanover, NC, Inland Brunswick, NC, Coastal Brunswick, NC, Marlboro, SC, Dillon, SC, Marion, SC, Coastal Horry, SC, Central Horry, SC, Northern Horry, SC
Expires 6:00 PM
50 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
4%
7 PM
32°
23%
8 PM
31°
23%
9 PM
30°
23%
10 PM
29°
23%
11 PM
28°
23%
12 AM
28°
21%
1 AM
28°
22%
2 AM
27°
3%
3 AM
27°
3%
4 AM
27°
3%
5 AM
25°
3%
6 AM
26°
3%
7 AM
26°
3%
8 AM
27°
3%
9 AM
28°
3%
10 AM
29°
3%
11 AM
30°
3%
12 PM
31°
3%
1 PM
35°
3%
2 PM
35°
3%
3 PM
35°
5%
4 PM
35°
5%
5 PM
34°
5%
7-Day Forecast
Tonight
34° 25°
Partly Cloudy with a 23% chance of rain.
Wed
37° 25°
Mostly Cloudy with a 21% chance of rain.
Thu
34° 24°
Mostly Cloudy with a 70% chance of rain.
Fri
32° 24°
Rain, 90% chance.
Sat
29° 22°
Rain, 90% chance.
Sun
34° 21°
Rain, 78% chance.
Mon
37° 23°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 33° Partly Cloudy 4% 12 mph SSW 43%
7 PM 32° Partly Cloudy 23% 11 mph S 47%
8 PM 31° Mostly Cloudy 23% 11 mph S 54%
9 PM 30° Mostly Cloudy 23% 11 mph S 62%
10 PM 29° Mostly Cloudy 23% 12 mph S 69%
11 PM 28° Overcast 23% 12 mph SSW 73%
12 AM 28° Mostly Cloudy 21% 12 mph SSW 75%
1 AM 28° Mostly Cloudy 22% 11 mph SSW 77%
2 AM 27° Mostly Cloudy 3% 10 mph SSW 80%
3 AM 27° Mostly Cloudy 3% 10 mph SSW 82%
4 AM 27° Overcast 3% 9 mph SSW 84%
5 AM 25° Overcast 3% 8 mph SSW 85%
6 AM 26° Overcast 3% 8 mph SSW 85%
7 AM 26° Overcast 3% 9 mph SSW 83%
8 AM 27° Overcast 3% 10 mph SW 78%
9 AM 28° Mostly Cloudy 3% 11 mph SW 70%
10 AM 29° Mostly Cloudy 3% 12 mph SW 62%
11 AM 30° Partly Cloudy 3% 12 mph SW 55%
12 PM 31° Partly Cloudy 3% 13 mph SW 50%
1 PM 35° Partly Cloudy 3% 14 mph SW 46%
2 PM 35° Mostly Cloudy 3% 14 mph SW 44%
3 PM 35° Mostly Cloudy 5% 13 mph SSW 44%
4 PM 35° Mostly Cloudy 5% 13 mph SSW 44%
5 PM 34° Mostly Cloudy 5% 13 mph SSW 45%
15-Day Forecast
Today
7/21
Partly Cloudy
23%
25°
34°
Wed
7/22
Mostly Cloudy
21%
25°
37°
Thu
7/23
Mostly Cloudy
70%
24°
34°
Fri
7/24
Rain
90%
24°
32°
Sat
7/25
Rain
90%
22°
29°
Sun
7/26
Rain
78%
21°
34°
Mon
7/27
Drizzle
60%
23°
37°
Tue
7/28
Drizzle
60%
24°
38°
Wed
7/29
Rain
81%
23°
36°
Thu
7/30
Drizzle
50%
23°
34°
Fri
7/31
Drizzle
51%
23°
34°
Sat
8/1
Drizzle
60%
23°
34°
Sun
8/2
Drizzle
60%
23°
34°
Mon
8/3
Drizzle
60%
23°
35°
Tue
8/4
Drizzle
60%
23°
36°
50
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
PM2.5
Fine particulate matter
Dominant
50 AQI 9.1 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 50 Good 34 50
Thu 49 Good 37 49
Fri 46 Good 31 46
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. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Jul 21, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE474 J/kg
MLCAPE0 J/kg
MUCAPE474 J/kg
SBCIN-52 J/kg
MLCIN0 J/kg
Lifted Index-3.2
Kinematics
0–6 km Shear18 kt
0–1 km Shear12 kt
Eff. Shear18 kt
0–1 km SRH-13
0–3 km SRH-32
Eff. SRH-32
Storm Motion212° @ 34 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index16.9
Thermo & Levels
PWAT1.41 in
0–3 km LR7.3 °C/km
700–500 LR6.1 °C/km
Total Totals40.5
LCL832 hPa
LFC701 hPa
EL213 hPa
Freezing Lvl16,089 ft