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, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM Extreme Heat Warning — 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, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM

Pearl River County, Mississippi, United States

Last updated: 6:57 PM CDT  ·  Refresh
30°C
Feels like 36°
Mostly Cloudy
▲ 34°  /  ▼ 23°
Wind
6 mph SE
Humidity
72%
Dew Point
24°
Pressure
29.76 inHg
Visibility
10 mi
UV Index
1.3
Cloud Cover
80%
Sunrise
6:27 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Pearl River County is currently mostly cloudy at 30°C. Precipitation is likely — peak probability 72% around 6 PM. Atmospheric instability is elevated (CAPE up to 2756 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 7:35PM.

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, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
Extreme Heat Warning
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, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
43 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
36%
7 PM
28°
51%
8 PM
27°
51%
9 PM
26°
37%
10 PM
26°
28%
11 PM
24°
28%
12 AM
23°
12%
1 AM
24°
8%
2 AM
24°
8%
3 AM
24°
6%
4 AM
24°
14%
5 AM
23°
14%
6 AM
23°
13%
7 AM
26°
21%
8 AM
27°
29%
9 AM
28°
32%
10 AM
30°
36%
11 AM
31°
41%
12 PM
33°
48%
1 PM
36°
53%
2 PM
35°
57%
3 PM
35°
66%
4 PM
34°
66%
5 PM
31°
71%
7-Day Forecast
Tonight
34° 23°
Mostly Cloudy with a 37% chance of rain.
Fri
37° 23°
Mostly Clear with a 72% chance of rain.
Sat
37° 23°
Mostly Clear with a 28% chance of rain.
Sun
38° 23°
Mostly Clear with a 53% chance of rain.
Mon
36° 24°
Rain, 67% chance.
Tue
35° 23°
Rain, 65% chance.
Wed
36° 24°
Rain, 73% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Cloudy 36% 6 mph SE 72%
7 PM 28° Partly Cloudy 51% 6 mph E 78%
8 PM 27° Partly Cloudy 51% 5 mph ESE 82%
9 PM 26° Partly Cloudy 37% 5 mph ESE 85%
10 PM 26° Partly Cloudy 28% 4 mph ESE 85%
11 PM 24° Partly Cloudy 28% 3 mph E 84%
12 AM 23° Partly Cloudy 12% 4 mph SSE 85%
1 AM 24° Partly Cloudy 8% 4 mph W 86%
2 AM 24° Partly Cloudy 8% 3 mph WSW 88%
3 AM 24° Partly Cloudy 6% 3 mph WSW 90%
4 AM 24° Mostly Clear 14% 3 mph W 86%
5 AM 23° Mostly Clear 14% 3 mph W 87%
6 AM 23° Clear 13% 3 mph WNW 87%
7 AM 26° Clear 21% 4 mph WNW 81%
8 AM 27° Clear 29% 4 mph WNW 75%
9 AM 28° Clear 32% 4 mph WNW 68%
10 AM 30° Mostly Clear 36% 4 mph WNW 60%
11 AM 31° Mostly Clear 41% 4 mph WNW 53%
12 PM 33° Mostly Clear 48% 4 mph WNW 45%
1 PM 36° Partly Cloudy 53% 4 mph W 45%
2 PM 35° Partly Cloudy 57% 3 mph W 45%
3 PM 35° Rain 66% 4 mph W 45%
4 PM 34° Partly Cloudy 66% 4 mph W 50%
5 PM 31° Partly Cloudy 71% 3 mph SW 56%
15-Day Forecast
Today
8/20
Mostly Cloudy
37%
23°
34°
Fri
8/21
Mostly Clear
72%
23°
37°
Sat
8/22
Mostly Clear
28%
23°
37°
Sun
8/23
Mostly Clear
53%
23°
38°
Mon
8/24
Rain
67%
24°
36°
Tue
8/25
Rain
65%
23°
35°
Wed
8/26
Rain
73%
24°
36°
Thu
8/27
Rain
74%
23°
33°
Fri
8/28
Rain
73%
22°
36°
Sat
8/29
Rain
66%
22°
37°
Sun
8/30
Drizzle
52%
23°
36°
Mon
8/31
Drizzle
60%
23°
36°
Tue
9/1
Drizzle
60%
23°
35°
Wed
9/2
Drizzle
60%
23°
36°
Thu
9/3
Drizzle
60%
23°
36°
43
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
43 AQI 7.7 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 43 Good 35 43
Sat 43 Good 32 43
Sun 40 Good 31 40
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 Thu Aug 20, 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
SBCAPE2596 J/kg
MLCAPE3074 J/kg
MUCAPE3604 J/kg
SBCIN-131 J/kg
MLCIN-40 J/kg
Lifted Index-5.7
Kinematics
0–6 km Shear16 kt
0–1 km Shear8 kt
Eff. Shear18 kt
0–1 km SRH30
0–3 km SRH62
Eff. SRH62
Storm Motion58° @ 16 kt
0–1 km EHI0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.8
Thermo & Levels
PWAT2.19 in
0–3 km LR6.3 °C/km
700–500 LR5.9 °C/km
Total Totals49.8
LCL916 hPa
LFC827 hPa
EL150 hPa
Freezing Lvl15,997 ft