Excessive Heat Watch 8:00 PM 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

St. James Parish, Louisiana, United States

Last updated: 10:05 PM CDT  ·  Refresh
28°C
Feels like 34°
Clear
▲ 36°  /  ▼ 25°
Wind
5 mph SSW
Humidity
86%
Dew Point
25°
Pressure
30.10 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
5%
Sunrise
6:30 AM
Sunset
7:44 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: St. James Parish is currently clear at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2770 J/kg) — isolated convective development possible. Sunrise: 6:30AM · Sunset: 7:44PM.

Alerts

Excessive Heat Watch
Expires 8:00 PM
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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
4%
11 PM
29°
16%
12 AM
28°
16%
1 AM
27°
4%
2 AM
27°
4%
3 AM
27°
4%
4 AM
27°
15%
5 AM
25°
16%
6 AM
25°
28%
7 AM
25°
29%
8 AM
27°
34%
9 AM
29°
22%
10 AM
30°
31%
11 AM
31°
31%
12 PM
33°
42%
1 PM
35°
35%
2 PM
34°
40%
3 PM
34°
41%
4 PM
33°
32%
5 PM
33°
32%
6 PM
32°
32%
7 PM
32°
22%
8 PM
31°
22%
9 PM
29°
20%
7-Day Forecast
Tonight
36° 25°
Clear.
Sun
37° 25°
Partly Cloudy with a 35% chance of rain.
Mon
39° 24°
Clear with a 38% chance of rain.
Tue
38° 24°
Clear with a 57% chance of rain.
Wed
39° 23°
Rain, 64% chance.
Thu
39° 23°
Drizzle, 51% chance.
Fri
39° 24°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 4% 5 mph SSW 86%
11 PM 29° Clear 16% 6 mph SW 90%
12 AM 28° Clear 16% 5 mph SW 92%
1 AM 27° Clear 4% 5 mph SW 94%
2 AM 27° Clear 4% 4 mph SW 94%
3 AM 27° Clear 4% 3 mph SW 95%
4 AM 27° Clear 15% 2 mph WSW 95%
5 AM 25° Mostly Clear 16% 3 mph W 95%
6 AM 25° Mostly Clear 28% 3 mph NW 95%
7 AM 25° Partly Cloudy 29% 3 mph NW 94%
8 AM 27° Mostly Clear 34% 4 mph NW 87%
9 AM 29° Mostly Clear 22% 5 mph NW 78%
10 AM 30° Mostly Clear 31% 5 mph NW 75%
11 AM 31° Mostly Clear 31% 3 mph NW 68%
12 PM 33° Mostly Clear 42% 2 mph WNW 62%
1 PM 35° Mostly Clear 35% 1 mph W 56%
2 PM 34° Partly Cloudy 40% 2 mph S 58%
3 PM 34° Partly Cloudy 41% 4 mph SSE 59%
4 PM 33° Partly Cloudy 32% 6 mph SSE 61%
5 PM 33° Partly Cloudy 32% 5 mph SSE 66%
6 PM 32° Partly Cloudy 32% 5 mph S 70%
7 PM 32° Partly Cloudy 22% 4 mph SSW 74%
8 PM 31° Mostly Clear 22% 4 mph SSW 76%
9 PM 29° Mostly Clear 20% 5 mph SW 77%
15-Day Forecast
Today
8/15
Clear
4%
25°
36°
Sun
8/16
Partly Cloudy
35%
25°
37°
Mon
8/17
Clear
38%
24°
39°
Tue
8/18
Clear
57%
24°
38°
Wed
8/19
Rain
64%
23°
39°
Thu
8/20
Drizzle
51%
23°
39°
Fri
8/21
Drizzle
52%
24°
39°
Sat
8/22
Rain
63%
23°
39°
Sun
8/23
Rain
69%
22°
37°
Mon
8/24
Drizzle
44%
23°
38°
Tue
8/25
Drizzle
60%
22°
38°
Wed
8/26
Drizzle
60%
24°
38°
Thu
8/27
Drizzle
60%
24°
37°
Fri
8/28
Drizzle
60%
24°
37°
Sat
8/29
Drizzle
60%
24°
37°
52
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
52 AQI 9.6 µg/m³
O3
Ground-level ozone
41 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 41 52
Mon 54 Moderate 39 54
Tue 52 Moderate 28 52
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, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2685 J/kg
MLCAPE1904 J/kg
MUCAPE2685 J/kg
SBCIN-106 J/kg
MLCIN-80 J/kg
Lifted Index-6.5
Kinematics
0–6 km Shear18 kt
0–1 km Shear5 kt
Eff. Shear14 kt
0–1 km SRH24
0–3 km SRH57
Eff. SRH57
Storm Motion95° @ 17 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index16.3
Thermo & Levels
PWAT1.58 in
0–3 km LR5.1 °C/km
700–500 LR6.4 °C/km
Total Totals45.4
LCL979 hPa
LFC845 hPa
EL143 hPa
Freezing Lvl16,929 ft