Heat Advisory — St. John The Baptist, LA, Upper St. Bernard, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Southwestern St. Tammany, LA, Lower Tangipahoa, LA, Southern Livingston, LA, Upper Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA 8:00 PM

St. John the Baptist Parish, Louisiana, United States

Last updated: 7:41 PM CDT  ·  Refresh
31°C
Feels like 38°
Mostly Clear
▲ 33°  /  ▼ 24°
Wind
4 mph SW
Humidity
74%
Dew Point
25°
Pressure
30.06 inHg
Visibility
10 mi
UV Index
1.4
Cloud Cover
24%
Sunrise
6:01 AM
Sunset
8:06 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: St. John the Baptist Parish is currently mostly clear at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3637 J/kg) — isolated convective development possible. Sunrise: 6:01AM · Sunset: 8:06PM.

Alerts

Heat Advisory
St. John The Baptist, LA, Upper St. Bernard, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Southwestern St. Tammany, LA, Lower Tangipahoa, LA, Southern Livingston, LA, Upper Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA
Expires 8:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
15%
8 PM
30°
37%
9 PM
28°
42%
10 PM
27°
32%
11 PM
26°
7%
12 AM
26°
3%
1 AM
24°
3%
2 AM
24°
4%
3 AM
24°
4%
4 AM
24°
5%
5 AM
24°
5%
6 AM
24°
5%
7 AM
26°
7%
8 AM
27°
19%
9 AM
28°
19%
10 AM
29°
19%
11 AM
30°
18%
12 PM
31°
15%
1 PM
32°
18%
2 PM
29°
18%
3 PM
30°
18%
4 PM
29°
18%
5 PM
30°
18%
6 PM
29°
18%
7-Day Forecast
Tonight
33° 24°
Mostly Clear with a 32% chance of rain.
Wed
33° 24°
Partly Cloudy.
Thu
33° 23°
Partly Cloudy.
Fri
33° 23°
Partly Cloudy with a 32% chance of rain.
Sat
34° 23°
Drizzle, 53% chance.
Sun
34° 23°
Drizzle, 54% chance.
Mon
34° 23°
Clear with a 21% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 31° Mostly Clear 15% 4 mph SW 74%
8 PM 30° Partly Cloudy 37% 5 mph SW 78%
9 PM 28° Rain 42% 4 mph WSW 80%
10 PM 27° Rain 32% 4 mph WSW 82%
11 PM 26° Partly Cloudy 7% 5 mph WSW 84%
12 AM 26° Mostly Clear 3% 6 mph WSW 85%
1 AM 24° Mostly Clear 3% 5 mph WSW 87%
2 AM 24° Partly Cloudy 4% 5 mph WSW 89%
3 AM 24° Mostly Cloudy 4% 5 mph WSW 92%
4 AM 24° Partly Cloudy 5% 5 mph W 92%
5 AM 24° Partly Cloudy 5% 5 mph W 92%
6 AM 24° Partly Cloudy 5% 5 mph WNW 92%
7 AM 26° Partly Cloudy 7% 5 mph WNW 89%
8 AM 27° Partly Cloudy 19% 5 mph WNW 85%
9 AM 28° Partly Cloudy 19% 5 mph NW 80%
10 AM 29° Partly Cloudy 19% 5 mph NW 76%
11 AM 30° Partly Cloudy 18% 5 mph NW 72%
12 PM 31° Partly Cloudy 15% 4 mph WNW 67%
1 PM 32° Partly Cloudy 18% 5 mph NW 65%
2 PM 29° Partly Cloudy 18% 5 mph WNW 64%
3 PM 30° Partly Cloudy 18% 6 mph WNW 62%
4 PM 29° Partly Cloudy 18% 5 mph NW 64%
5 PM 30° Partly Cloudy 18% 4 mph NW 68%
6 PM 29° Mostly Cloudy 18% 5 mph NNW 71%
15-Day Forecast
Today
6/23
Mostly Clear
32%
24°
33°
Wed
6/24
Partly Cloudy
19%
24°
33°
Thu
6/25
Partly Cloudy
17%
23°
33°
Fri
6/26
Partly Cloudy
32%
23°
33°
Sat
6/27
Drizzle
53%
23°
34°
Sun
6/28
Drizzle
54%
23°
34°
Mon
6/29
Clear
21%
23°
34°
Tue
6/30
Rain
72%
23°
34°
Wed
7/1
Rain
68%
23°
33°
Thu
7/2
Rain
66%
24°
33°
Fri
7/3
Clear
41%
23°
35°
Sat
7/4
Drizzle
66%
23°
35°
Sun
7/5
Drizzle
66%
23°
36°
Mon
7/6
Drizzle
66%
23°
36°
Tue
7/7
Drizzle
66%
23°
36°
53
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
53 AQI 10.5 µg/m³
O3
Ground-level ozone
24 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 53 Moderate 24 53
Thu 71 Moderate 33 71
Fri 64 Moderate 25 64
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 Jun 23, 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
SBCAPE3944 J/kg
MLCAPE3055 J/kg
MUCAPE3944 J/kg
SBCIN-53 J/kg
MLCIN0 J/kg
Lifted Index-10.9
Kinematics
0–6 km Shear14 kt
0–1 km Shear5 kt
Eff. Shear3 kt
0–1 km SRH-20
0–3 km SRH-50
Eff. SRH-50
Storm Motion249° @ 20 kt
0–1 km EHI-0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index25.0
Thermo & Levels
PWAT1.83 in
0–3 km LR6.0 °C/km
700–500 LR7.6 °C/km
Total Totals53.8
LCL939 hPa
LFC894 hPa
EL134 hPa
Freezing Lvl15,633 ft