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 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

St. John the Baptist Parish, Louisiana, United States

Last updated: 12:37 PM CDT  ·  Refresh
34°C
Feels like 41°
Clear
▲ 36°  /  ▼ 24°
Wind
6 mph W
Humidity
59%
Dew Point
24°
Pressure
30.02 inHg
Visibility
10 mi
UV Index
9.6
Cloud Cover
7%
Sunrise
6:32 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: St. John the Baptist Parish is currently clear at 34°C. Precipitation is likely — peak probability 78% around 6 PM. Atmospheric instability is elevated (CAPE up to 3246 J/kg) — isolated convective development possible. Sunrise: 6:32AM · Sunset: 7:37PM.

Alerts

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
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
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
13%
1 PM
36°
45%
2 PM
36°
60%
3 PM
36°
63%
4 PM
34°
62%
5 PM
34°
63%
6 PM
31°
77%
7 PM
29°
74%
8 PM
28°
59%
9 PM
28°
49%
10 PM
27°
9%
11 PM
27°
10%
12 AM
27°
10%
1 AM
27°
10%
2 AM
26°
10%
3 AM
26°
10%
4 AM
26°
23%
5 AM
24°
19%
6 AM
24°
19%
7 AM
26°
19%
8 AM
26°
25%
9 AM
28°
26%
10 AM
29°
12%
11 AM
30°
12%
7-Day Forecast
Today
36° 24°
Rain, 77% chance.
Sat
38° 24°
Partly Cloudy with a 25% chance of rain.
Sun
38° 26°
Partly Cloudy with a 25% chance of rain.
Mon
36° 26°
Partly Cloudy with a 59% chance of rain.
Tue
37° 25°
Rain, 69% chance.
Wed
38° 24°
Rain, 70% chance.
Thu
36° 24°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Clear 13% 6 mph W 59%
1 PM 36° Mostly Clear 45% 6 mph WSW 56%
2 PM 36° Partly Cloudy 60% 6 mph SW 54%
3 PM 36° Partly Cloudy 63% 6 mph SSW 54%
4 PM 34° Partly Cloudy 62% 6 mph SSW 60%
5 PM 34° Mostly Cloudy 63% 4 mph SSW 69%
6 PM 31° Rain 77% 8 mph WSW 77%
7 PM 29° Rain 74% 7 mph SW 81%
8 PM 28° Rain 59% 6 mph SSW 83%
9 PM 28° Rain 49% 7 mph SW 84%
10 PM 27° Mostly Cloudy 9% 6 mph SW 85%
11 PM 27° Mostly Cloudy 10% 6 mph WSW 86%
12 AM 27° Mostly Cloudy 10% 6 mph WSW 87%
1 AM 27° Overcast 10% 6 mph WSW 88%
2 AM 26° Overcast 10% 6 mph WSW 88%
3 AM 26° Overcast 10% 5 mph WSW 88%
4 AM 26° Overcast 23% 5 mph WSW 88%
5 AM 24° Overcast 19% 5 mph WSW 88%
6 AM 24° Overcast 19% 5 mph WSW 88%
7 AM 26° Mostly Cloudy 19% 5 mph W 85%
8 AM 26° Mostly Cloudy 25% 5 mph W 81%
9 AM 28° Mostly Cloudy 26% 5 mph W 76%
10 AM 29° Mostly Cloudy 12% 5 mph W 72%
11 AM 30° Mostly Cloudy 12% 4 mph W 69%
15-Day Forecast
Today
8/21
Rain
77%
24°
36°
Sat
8/22
Partly Cloudy
25%
24°
38°
Sun
8/23
Partly Cloudy
25%
26°
38°
Mon
8/24
Partly Cloudy
59%
26°
36°
Tue
8/25
Rain
69%
25°
37°
Wed
8/26
Rain
70%
24°
38°
Thu
8/27
Rain
71%
24°
36°
Fri
8/28
Drizzle
42%
24°
37°
Sat
8/29
Rain
68%
24°
38°
Sun
8/30
Drizzle
44%
24°
37°
Mon
8/31
Drizzle
60%
24°
38°
Tue
9/1
Drizzle
60%
24°
38°
Wed
9/2
Drizzle
60%
24°
38°
Thu
9/3
Drizzle
60%
24°
38°
Fri
9/4
Drizzle
60%
24°
38°
55
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
55 AQI 11.2 µg/m³
O3
Ground-level ozone
41 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 55 Moderate 41 55
Sun 53 Moderate 41 53
Mon 55 Moderate 42 55
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.

Model sounding data is unavailable for this location.