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

Southwestern St. Tammany, LA

Last updated: 6:13 PM CDT  ·  Refresh
33°C
Feels like 41°
Partly Cloudy
▲ 34°  /  ▼ 26°
Wind
7 mph SW
Humidity
60%
Dew Point
24°
Pressure
29.89 inHg
Visibility
10 mi
UV Index
4.3
Cloud Cover
33%
Sunrise
6:29 AM
Sunset
7:49 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Southwestern St. Tammany is currently partly cloudy at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2906 J/kg) — isolated convective development possible. Sunrise: 6:29AM · Sunset: 7:49PM.

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
24 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
31%
7 PM
33°
25%
8 PM
32°
25%
9 PM
31°
18%
10 PM
29°
25%
11 PM
29°
18%
12 AM
28°
16%
1 AM
28°
10%
2 AM
27°
10%
3 AM
27°
10%
4 AM
27°
3%
5 AM
26°
3%
6 AM
26°
3%
7 AM
26°
3%
8 AM
28°
4%
9 AM
29°
12%
10 AM
30°
12%
11 AM
31°
12%
12 PM
32°
13%
1 PM
36°
13%
2 PM
36°
13%
3 PM
36°
13%
4 PM
35°
13%
5 PM
34°
15%
7-Day Forecast
Tonight
34° 26°
Partly Cloudy with a 31% chance of rain.
Thu
37° 24°
Mostly Clear.
Fri
38° 24°
Mostly Clear.
Sat
38° 24°
Clear with a 39% chance of rain.
Sun
39° 24°
Rain, 64% chance.
Mon
37° 24°
Mostly Cloudy with a 36% chance of rain.
Tue
37° 24°
Partly Cloudy with a 21% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 33° Partly Cloudy 31% 7 mph SW 60%
7 PM 33° Mostly Clear 25% 8 mph SSW 66%
8 PM 32° Mostly Clear 25% 7 mph SSW 71%
9 PM 31° Clear 18% 7 mph SSW 76%
10 PM 29° Clear 25% 6 mph SSW 80%
11 PM 29° Clear 18% 6 mph SSW 83%
12 AM 28° Clear 16% 6 mph SSW 85%
1 AM 28° Clear 10% 5 mph SSW 87%
2 AM 27° Mostly Clear 10% 5 mph SSW 89%
3 AM 27° Mostly Clear 10% 4 mph SSW 91%
4 AM 27° Partly Cloudy 3% 4 mph SSW 92%
5 AM 26° Partly Cloudy 3% 4 mph SSW 93%
6 AM 26° Partly Cloudy 3% 4 mph SW 93%
7 AM 26° Partly Cloudy 3% 4 mph SW 92%
8 AM 28° Partly Cloudy 4% 6 mph SW 84%
9 AM 29° Partly Cloudy 12% 7 mph WSW 76%
10 AM 30° Partly Cloudy 12% 7 mph WSW 69%
11 AM 31° Mostly Clear 12% 7 mph SW 62%
12 PM 32° Mostly Clear 13% 7 mph SW 55%
1 PM 36° Mostly Clear 13% 7 mph SW 49%
2 PM 36° Mostly Clear 13% 7 mph SW 48%
3 PM 36° Partly Cloudy 13% 7 mph SW 48%
4 PM 35° Partly Cloudy 13% 7 mph SW 48%
5 PM 34° Partly Cloudy 15% 8 mph SSW 51%
15-Day Forecast
Today
8/12
Partly Cloudy
31%
26°
34°
Thu
8/13
Mostly Clear
16%
24°
37°
Fri
8/14
Mostly Clear
5%
24°
38°
Sat
8/15
Clear
39%
24°
38°
Sun
8/16
Rain
64%
24°
39°
Mon
8/17
Mostly Cloudy
36%
24°
37°
Tue
8/18
Partly Cloudy
21%
24°
37°
Wed
8/19
Mostly Clear
21%
24°
38°
Thu
8/20
Clear
39%
24°
39°
Fri
8/21
Partly Cloudy
20%
23°
39°
Sat
8/22
Drizzle
45%
24°
39°
Sun
8/23
Drizzle
60%
24°
39°
Mon
8/24
Drizzle
60%
23°
37°
Tue
8/25
Drizzle
60%
23°
38°
Wed
8/26
Drizzle
60%
23°
37°
24
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
21 AQI 3.7 µg/m³
O3
Ground-level ozone
Dominant
24 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 24 Good 24 21
Fri 33 Good 22 33
Sat 51 Moderate 27 51
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 Wed Aug 12, 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
SBCAPE3527 J/kg
MLCAPE3674 J/kg
MUCAPE3814 J/kg
SBCIN-20 J/kg
MLCIN0 J/kg
Lifted Index-6.6
Kinematics
0–6 km Shear4 kt
0–1 km Shear2 kt
Eff. Shear6 kt
0–1 km SRH11
0–3 km SRH8
Eff. SRH8
Storm Motion354° @ 11 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.6
Thermo & Levels
PWAT2.03 in
0–3 km LR7.7 °C/km
700–500 LR5.3 °C/km
Total Totals47.7
LCL881 hPa
LFC847 hPa
EL142 hPa
Freezing Lvl16,893 ft