Port Royal, South Carolina

Last updated: 3:42 AM CDT  ·  Refresh
20°C
Feels like 22°
Partly Cloudy
▲ 26°  /  ▼ 19°
Wind
6 mph ENE
Humidity
95%
Dew Point
19°
Pressure
30.08 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
43%
Sunrise
6:42 AM
Sunset
5:29 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Port Royal is currently partly cloudy at 20°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 710 J/kg) — isolated convective development possible. Sunrise: 6:42AM · Sunset: 5:29PM.

Alerts

No active alerts for this location.
32 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
20°
2%
5 AM
19°
1%
6 AM
19°
2%
7 AM
21°
1%
8 AM
21°
1%
9 AM
22°
1%
10 AM
23°
1%
11 AM
24°
1%
12 PM
25°
1%
1 PM
25°
1%
2 PM
25°
1%
3 PM
24°
1%
4 PM
24°
2%
5 PM
23°
2%
6 PM
22°
3%
7 PM
22°
3%
8 PM
21°
4%
9 PM
21°
4%
10 PM
21°
4%
11 PM
20°
6%
12 AM
20°
7%
1 AM
20°
7%
2 AM
20°
8%
3 AM
20°
5%
7-Day Forecast
Today
26° 19°
Mostly Cloudy.
Thu
27° 19°
Mostly Clear.
Fri
27° 17°
Mostly Cloudy with a 25% chance of rain.
Sat
24° 14°
Mostly Clear.
Sun
21° 12°
Partly Cloudy.
Mon
21° 11°
Mostly Clear.
Tue
21° 10°
Partly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 20° Partly Cloudy 2% 6 mph ENE 95%
5 AM 19° Partly Cloudy 1% 6 mph ENE 95%
6 AM 19° Partly Cloudy 2% 6 mph ENE 96%
7 AM 21° Partly Cloudy 1% 7 mph ENE 95%
8 AM 21° Partly Cloudy 1% 8 mph E 91%
9 AM 22° Partly Cloudy 1% 8 mph ESE 86%
10 AM 23° Mostly Cloudy 1% 9 mph SE 81%
11 AM 24° Mostly Cloudy 1% 10 mph SE 78%
12 PM 25° Mostly Cloudy 1% 10 mph SE 75%
1 PM 25° Overcast 1% 10 mph SE 74%
2 PM 25° Overcast 1% 9 mph SE 74%
3 PM 24° Overcast 1% 8 mph SE 76%
4 PM 24° Overcast 2% 6 mph SE 80%
5 PM 23° Overcast 2% 4 mph ESE 86%
6 PM 22° Overcast 3% 4 mph ESE 91%
7 PM 22° Mostly Cloudy 3% 4 mph ESE 93%
8 PM 21° Mostly Cloudy 4% 3 mph ESE 94%
9 PM 21° Mostly Cloudy 4% 3 mph ESE 94%
10 PM 21° Mostly Cloudy 4% 3 mph SE 94%
11 PM 20° Mostly Cloudy 6% 3 mph SE 95%
12 AM 20° Mostly Cloudy 7% 3 mph SE 95%
1 AM 20° Mostly Cloudy 7% 2 mph SE 95%
2 AM 20° Mostly Cloudy 8% 2 mph SE 95%
3 AM 20° Mostly Cloudy 5% 2 mph SE 96%
15-Day Forecast
Today
11/4
Mostly Cloudy
4%
19°
26°
Thu
11/5
Mostly Clear
5%
19°
27°
Fri
11/6
Mostly Cloudy
25%
17°
27°
Sat
11/7
Mostly Clear
1%
14°
24°
Sun
11/8
Partly Cloudy
3%
12°
21°
Mon
11/9
Mostly Clear
4%
11°
21°
Tue
11/10
Partly Cloudy
7%
10°
21°
Wed
11/11
Partly Cloudy
6%
11°
22°
Thu
11/12
Drizzle
6%
12°
21°
Fri
11/13
Mostly Clear
5%
12°
20°
Sat
11/14
Mostly Clear
10%
12°
21°
Sun
11/15
Drizzle
81%
13°
21°
Mon
11/16
Drizzle
77%
13°
21°
Tue
11/17
Drizzle
67%
13°
21°
Wed
11/18
Drizzle
69%
14°
21°
32
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
25 AQI 4.5 µg/m³
O3
Ground-level ozone
Dominant
32 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 32 Good 32 25
Thu 30 Good 30 26
Fri 31 Good 31 23
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Nov 4, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE43 J/kg
MUCAPE250 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index4.0
Kinematics
0–6 km Shear15 kt
0–1 km Shear16 kt
Eff. Shear21 kt
0–1 km SRH98
0–3 km SRH68
Eff. SRH30
Storm Motion271° @ 10 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.1
K-Index17.6
Thermo & Levels
PWAT1.52 in
0–3 km LR4.0 °C/km
700–500 LR5.0 °C/km
Total Totals34.8
LCL1006 hPa
LFC—
EL—
Freezing Lvl13,957 ft