Heat Advisory — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS 8:00 PM

Coastal Colleton, SC

Last updated: 10:13 PM CDT  ·  Refresh
29°C
Feels like 35°
Partly Cloudy
▲ 36°  /  ▼ 25°
Wind
6 mph SSW
Humidity
77%
Dew Point
24°
Pressure
30.00 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
56%
Sunrise
6:32 AM
Sunset
7:44 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Coastal Colleton is currently partly cloudy at 29°C. Precipitation is likely — peak probability 57% around 9 PM. Atmospheric instability is elevated (CAPE up to 2354 J/kg) — isolated convective development possible. Sunrise: 6:32AM · Sunset: 7:44PM.

Alerts

Heat Advisory
Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS
Expires 8:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
9%
11 PM
28°
17%
12 AM
28°
16%
1 AM
27°
5%
2 AM
27°
5%
3 AM
27°
10%
4 AM
27°
20%
5 AM
25°
20%
6 AM
25°
21%
7 AM
26°
21%
8 AM
27°
21%
9 AM
27°
21%
10 AM
29°
29%
11 AM
30°
29%
12 PM
32°
20%
1 PM
34°
26%
2 PM
36°
27%
3 PM
36°
30%
4 PM
36°
45%
5 PM
36°
50%
6 PM
36°
50%
7 PM
34°
50%
8 PM
33°
57%
9 PM
31°
57%
7-Day Forecast
Tonight
36° 25°
Partly Cloudy.
Tue
37° 25°
Mostly Cloudy with a 45% chance of rain.
Wed
39° 25°
Partly Cloudy.
Thu
38° 24°
Mostly Clear with a 37% chance of rain.
Fri
40° 25°
Rain, 64% chance.
Sat
40° 25°
Clear with a 21% chance of rain.
Sun
41° 24°
Clear with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 29° Partly Cloudy 9% 6 mph SSW 77%
11 PM 28° Partly Cloudy 17% 5 mph SSW 81%
12 AM 28° Mostly Cloudy 16% 4 mph SW 81%
1 AM 27° Mostly Cloudy 5% 5 mph SW 82%
2 AM 27° Mostly Cloudy 5% 4 mph SW 84%
3 AM 27° Overcast 10% 5 mph WSW 86%
4 AM 27° Overcast 20% 5 mph WSW 87%
5 AM 25° Overcast 20% 4 mph WSW 88%
6 AM 25° Overcast 21% 4 mph W 89%
7 AM 26° Mostly Cloudy 21% 4 mph W 89%
8 AM 27° Overcast 21% 6 mph W 85%
9 AM 27° Overcast 21% 7 mph W 80%
10 AM 29° Overcast 29% 7 mph W 74%
11 AM 30° Mostly Cloudy 29% 6 mph W 66%
12 PM 32° Mostly Cloudy 20% 5 mph W 58%
1 PM 34° Mostly Cloudy 26% 4 mph WSW 52%
2 PM 36° Mostly Cloudy 27% 4 mph WSW 49%
3 PM 36° Partly Cloudy 30% 5 mph SW 47%
4 PM 36° Partly Cloudy 45% 5 mph SW 46%
5 PM 36° Mostly Cloudy 50% 6 mph SW 49%
6 PM 36° Mostly Cloudy 50% 6 mph SW 52%
7 PM 34° Overcast 50% 7 mph SW 56%
8 PM 33° Mostly Cloudy 57% 6 mph SW 63%
9 PM 31° Mostly Cloudy 57% 5 mph SW 70%
15-Day Forecast
Today
8/17
Partly Cloudy
9%
25°
36°
Tue
8/18
Mostly Cloudy
45%
25°
37°
Wed
8/19
Partly Cloudy
3%
25°
39°
Thu
8/20
Mostly Clear
37%
24°
38°
Fri
8/21
Rain
64%
25°
40°
Sat
8/22
Clear
21%
25°
40°
Sun
8/23
Clear
28%
24°
41°
Mon
8/24
Clear
31%
24°
39°
Tue
8/25
Drizzle
43%
24°
39°
Wed
8/26
Rain
68%
24°
39°
Thu
8/27
Drizzle
60%
23°
36°
Fri
8/28
Drizzle
60%
23°
38°
Sat
8/29
Drizzle
60%
22°
38°
Sun
8/30
Clear
60%
22°
37°
Mon
8/31
Drizzle
60%
22°
37°
51
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
51 AQI 9.3 µg/m³
O3
Ground-level ozone
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 51 Moderate 34 51
Wed 49 Good 31 49
Thu 44 Good 24 44
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 Mon Aug 17, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1921 J/kg
MLCAPE2799 J/kg
MUCAPE3438 J/kg
SBCIN-157 J/kg
MLCIN-42 J/kg
Lifted Index-4.6
Kinematics
0–6 km Shear11 kt
0–1 km Shear4 kt
Eff. Shear6 kt
0–1 km SRH20
0–3 km SRH52
Eff. SRH52
Storm Motion41° @ 16 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.1
Thermo & Levels
PWAT2.15 in
0–3 km LR5.7 °C/km
700–500 LR5.9 °C/km
Total Totals48.6
LCL938 hPa
LFC760 hPa
EL149 hPa
Freezing Lvl16,886 ft