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 Extreme Heat Watch 8:00 PM

Jefferson Parish, Louisiana, United States

Last updated: 4:36 AM CDT  ·  Refresh
27°C
Feels like 30°
Clear
▲ 36°  /  ▼ 27°
Wind
3 mph W
Humidity
84%
Dew Point
24°
Pressure
30.12 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
9%
Sunrise
6:28 AM
Sunset
7:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson Parish is currently clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2094 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 7:40PM.

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
Extreme Heat Watch
Expires 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
11%
5 AM
26°
26%
6 AM
26°
26%
7 AM
27°
26%
8 AM
29°
26%
9 AM
31°
26%
10 AM
32°
29%
11 AM
33°
30%
12 PM
35°
29%
1 PM
36°
29%
2 PM
36°
37%
3 PM
34°
37%
4 PM
33°
34%
5 PM
33°
38%
6 PM
32°
33%
7 PM
32°
23%
8 PM
31°
20%
9 PM
29°
20%
10 PM
29°
18%
11 PM
28°
18%
12 AM
28°
9%
1 AM
28°
3%
2 AM
28°
3%
3 AM
28°
3%
7-Day Forecast
Today
36° 27°
Mostly Clear with a 34% chance of rain.
Mon
37° 27°
Partly Cloudy with a 35% chance of rain.
Tue
38° 26°
Mostly Clear with a 39% chance of rain.
Wed
37° 25°
Clear with a 51% chance of rain.
Thu
37° 24°
Clear.
Fri
37° 26°
Drizzle, 52% chance.
Sat
36° 26°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 11% 3 mph W 84%
5 AM 26° Clear 26% 3 mph WNW 83%
6 AM 26° Clear 26% 3 mph WNW 84%
7 AM 27° Clear 26% 4 mph WNW 81%
8 AM 29° Clear 26% 5 mph NW 75%
9 AM 31° Clear 26% 5 mph NNW 69%
10 AM 32° Clear 29% 5 mph NNW 63%
11 AM 33° Clear 30% 5 mph NNW 57%
12 PM 35° Clear 29% 4 mph N 51%
1 PM 36° Mostly Clear 29% 4 mph NNE 50%
2 PM 36° Partly Cloudy 37% 4 mph SSE 53%
3 PM 34° Partly Cloudy 37% 7 mph S 57%
4 PM 33° Partly Cloudy 34% 10 mph S 62%
5 PM 33° Mostly Cloudy 38% 10 mph S 64%
6 PM 32° Mostly Cloudy 33% 9 mph S 66%
7 PM 32° Partly Cloudy 23% 8 mph SSW 70%
8 PM 31° Partly Cloudy 20% 7 mph SSW 75%
9 PM 29° Mostly Clear 20% 7 mph SW 80%
10 PM 29° Clear 18% 7 mph SW 82%
11 PM 28° Clear 18% 6 mph SW 82%
12 AM 28° Mostly Clear 9% 6 mph SW 82%
1 AM 28° Mostly Clear 3% 6 mph WSW 82%
2 AM 28° Mostly Clear 3% 6 mph WSW 84%
3 AM 28° Partly Cloudy 3% 6 mph WSW 86%
15-Day Forecast
Today
8/16
Mostly Clear
34%
27°
36°
Mon
8/17
Partly Cloudy
35%
27°
37°
Tue
8/18
Mostly Clear
39%
26°
38°
Wed
8/19
Clear
51%
25°
37°
Thu
8/20
Clear
16%
24°
37°
Fri
8/21
Drizzle
52%
26°
37°
Sat
8/22
Rain
63%
26°
36°
Sun
8/23
Rain
68%
25°
36°
Mon
8/24
Rain
43%
25°
36°
Tue
8/25
Drizzle
42%
25°
36°
Wed
8/26
Drizzle
60%
26°
36°
Thu
8/27
Drizzle
60%
26°
36°
Fri
8/28
Drizzle
60%
26°
36°
Sat
8/29
Drizzle
60%
26°
35°
Sun
8/30
Drizzle
60%
26°
35°
54
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
54 AQI 10.7 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 46 54
Mon 58 Moderate 58 57
Tue 56 Moderate 38 56
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 Sun Aug 16, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1490 J/kg
MLCAPE663 J/kg
MUCAPE1490 J/kg
SBCIN-105 J/kg
MLCIN-103 J/kg
Lifted Index-4.3
Kinematics
0–6 km Shear17 kt
0–1 km Shear3 kt
Eff. Shear16 kt
0–1 km SRH11
0–3 km SRH26
Eff. SRH26
Storm Motion150° @ 15 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.2
Thermo & Levels
PWAT1.95 in
0–3 km LR5.3 °C/km
700–500 LR5.7 °C/km
Total Totals44.5
LCL976 hPa
LFC825 hPa
EL180 hPa
Freezing Lvl16,394 ft