Excessive Heat Warning — St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, 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, Central Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, 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, Northern Tangipahoa, 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, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS 8:00 PM

Northern St. Tammany, LA

Last updated: 1:35 AM CDT  ·  Refresh
27°C
Feels like 31°
Clear
▲ 36°  /  ▼ 26°
Wind
5 mph WSW
Humidity
85%
Dew Point
25°
Pressure
29.85 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:20 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Northern St. Tammany is currently clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1557 J/kg) — isolated convective development possible. Sunrise: 6:20AM · Sunset: 8:01PM.

Alerts

Excessive Heat Warning
St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, 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, Central Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, 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, Northern Tangipahoa, 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, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS
Expires 8:00 PM
30 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
11%
2 AM
27°
11%
3 AM
27°
3%
4 AM
27°
4%
5 AM
25°
4%
6 AM
25°
4%
7 AM
26°
4%
8 AM
27°
4%
9 AM
29°
4%
10 AM
31°
5%
11 AM
32°
5%
12 PM
34°
5%
1 PM
36°
5%
2 PM
36°
5%
3 PM
36°
5%
4 PM
36°
3%
5 PM
36°
3%
6 PM
36°
3%
7 PM
35°
3%
8 PM
33°
3%
9 PM
32°
3%
10 PM
31°
3%
11 PM
31°
3%
12 AM
31°
3%
7-Day Forecast
Today
36° 26°
Mostly Clear.
Wed
38° 26°
Partly Cloudy.
Thu
37° 26°
Partly Cloudy with a 57% chance of rain.
Fri
36° 26°
Heavy Rain, 83% chance.
Sat
37° 24°
Rain, 64% chance.
Sun
36° 23°
Rain, 70% chance.
Mon
38° 24°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 11% 5 mph WSW 85%
2 AM 27° Clear 11% 5 mph W 86%
3 AM 27° Clear 3% 5 mph W 88%
4 AM 27° Clear 4% 5 mph W 88%
5 AM 25° Mostly Clear 4% 5 mph W 89%
6 AM 25° Mostly Clear 4% 5 mph W 90%
7 AM 26° Mostly Clear 4% 6 mph W 87%
8 AM 27° Partly Cloudy 4% 7 mph W 81%
9 AM 29° Partly Cloudy 4% 8 mph WNW 75%
10 AM 31° Partly Cloudy 5% 7 mph WNW 68%
11 AM 32° Mostly Clear 5% 7 mph WNW 62%
12 PM 34° Mostly Clear 5% 6 mph WNW 55%
1 PM 36° Mostly Clear 5% 6 mph WNW 51%
2 PM 36° Mostly Clear 5% 6 mph W 51%
3 PM 36° Mostly Clear 5% 7 mph W 50%
4 PM 36° Mostly Clear 3% 7 mph W 51%
5 PM 36° Mostly Clear 3% 6 mph WSW 54%
6 PM 36° Clear 3% 6 mph WSW 56%
7 PM 35° Clear 3% 6 mph WSW 60%
8 PM 33° Mostly Clear 3% 6 mph WSW 64%
9 PM 32° Mostly Clear 3% 6 mph SW 68%
10 PM 31° Mostly Clear 3% 6 mph WSW 71%
11 PM 31° Mostly Clear 3% 6 mph WSW 74%
12 AM 31° Clear 3% 6 mph WSW 76%
15-Day Forecast
Today
7/28
Mostly Clear
11%
26°
36°
Wed
7/29
Partly Cloudy
6%
26°
38°
Thu
7/30
Partly Cloudy
57%
26°
37°
Fri
7/31
Heavy Rain
83%
26°
36°
Sat
8/1
Rain
64%
24°
37°
Sun
8/2
Rain
70%
23°
36°
Mon
8/3
Drizzle
53%
24°
38°
Tue
8/4
Rain
68%
24°
38°
Wed
8/5
Drizzle
44%
24°
38°
Thu
8/6
Drizzle
51%
24°
38°
Fri
8/7
Drizzle
60%
24°
37°
Sat
8/8
Drizzle
60%
24°
36°
Sun
8/9
Drizzle
60%
24°
36°
Mon
8/10
Drizzle
60%
24°
37°
Tue
8/11
Drizzle
60%
24°
37°
30
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
25 AQI 4.5 µg/m³
O3
Ground-level ozone
Dominant
30 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 30 Good 30 25
Wed 34 Good 30 34
Thu 46 Good 30 46
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 Jul 28, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1473 J/kg
MLCAPE1161 J/kg
MUCAPE1473 J/kg
SBCIN-129 J/kg
MLCIN0 J/kg
Lifted Index-3.1
Kinematics
0–6 km Shear23 kt
0–1 km Shear3 kt
Eff. Shear27 kt
0–1 km SRH10
0–3 km SRH4
Eff. SRH4
Storm Motion332° @ 17 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.1
K-Index23.3
Thermo & Levels
PWAT1.60 in
0–3 km LR5.3 °C/km
700–500 LR5.0 °C/km
Total Totals38.3
LCL970 hPa
LFC786 hPa
EL162 hPa
Freezing Lvl17,362 ft