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 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

Saint Helena Parish, Louisiana, United States

Last updated: 2:37 PM CDT  ·  Refresh
35°C
Feels like 41°
Mostly Clear
▲ 37°  /  ▼ 22°
Wind
7 mph WSW
Humidity
50%
Dew Point
23°
Pressure
29.80 inHg
Visibility
10 mi
UV Index
9.2
Cloud Cover
21%
Sunrise
6:27 AM
Sunset
7:46 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Helena Parish is currently mostly clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2755 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 7:46PM.

Alerts

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
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
40 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
35°
20%
3 PM
37°
21%
4 PM
37°
20%
5 PM
36°
5%
6 PM
35°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
30°
3%
10 PM
29°
3%
11 PM
28°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
25°
3%
3 AM
24°
3%
4 AM
24°
3%
5 AM
22°
3%
6 AM
22°
3%
7 AM
23°
3%
8 AM
25°
3%
9 AM
29°
3%
10 AM
30°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
33°
3%
7-Day Forecast
Today
37° 22°
Mostly Clear with a 20% chance of rain.
Fri
37° 22°
Mostly Clear.
Sat
38° 24°
Partly Cloudy with a 21% chance of rain.
Sun
39° 23°
Clear with a 71% chance of rain.
Mon
40° 22°
Rain, 81% chance.
Tue
41° 22°
Drizzle, 60% chance.
Wed
41° 23°
Thunderstorm, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 35° Mostly Clear 20% 7 mph WSW 50%
3 PM 37° Mostly Clear 21% 6 mph SW 47%
4 PM 37° Clear 20% 6 mph SSW 48%
5 PM 36° Clear 5% 7 mph SSW 49%
6 PM 35° Clear 3% 7 mph SSW 52%
7 PM 33° Clear 3% 7 mph SSW 57%
8 PM 32° Clear 3% 6 mph SSW 63%
9 PM 30° Clear 3% 6 mph SSW 69%
10 PM 29° Clear 3% 6 mph SW 74%
11 PM 28° Mostly Clear 3% 6 mph SW 80%
12 AM 27° Mostly Clear 3% 5 mph SW 84%
1 AM 26° Mostly Clear 3% 4 mph SW 88%
2 AM 25° Mostly Clear 3% 3 mph SW 91%
3 AM 24° Mostly Clear 3% 2 mph SW 93%
4 AM 24° Mostly Clear 3% 2 mph WSW 95%
5 AM 22° Mostly Clear 3% 2 mph WSW 95%
6 AM 22° Partly Cloudy 3% 2 mph WSW 96%
7 AM 23° Partly Cloudy 3% 2 mph WSW 90%
8 AM 25° Mostly Clear 3% 3 mph WSW 81%
9 AM 29° Mostly Clear 3% 3 mph WSW 74%
10 AM 30° Mostly Clear 3% 4 mph WSW 68%
11 AM 31° Mostly Clear 3% 4 mph WSW 62%
12 PM 32° Clear 3% 4 mph WSW 56%
1 PM 33° Mostly Clear 3% 4 mph SW 53%
15-Day Forecast
Today
8/13
Mostly Clear
20%
22°
37°
Fri
8/14
Mostly Clear
3%
22°
37°
Sat
8/15
Partly Cloudy
21%
24°
38°
Sun
8/16
Clear
71%
23°
39°
Mon
8/17
Rain
81%
22°
40°
Tue
8/18
Drizzle
60%
22°
41°
Wed
8/19
Thunderstorm
60%
23°
41°
Thu
8/20
Clear
60%
22°
40°
Fri
8/21
Drizzle
60%
22°
40°
Sat
8/22
Drizzle
60%
21°
39°
Sun
8/23
Drizzle
60%
22°
38°
Mon
8/24
Drizzle
90%
23°
38°
Tue
8/25
Drizzle
60%
23°
38°
Wed
8/26
Drizzle
60%
23°
38°
Thu
8/27
Drizzle
60%
23°
38°
40
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
40 AQI 7.3 µg/m³
O3
Ground-level ozone
27 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 40 Good 27 40
Sat 56 Moderate 31 56
Sun 52 Moderate 25 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 Thu Aug 13, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3453 J/kg
MLCAPE2933 J/kg
MUCAPE3453 J/kg
SBCIN0 J/kg
MLCIN-1 J/kg
Lifted Index-6.6
Kinematics
0–6 km Shear6 kt
0–1 km Shear1 kt
Eff. Shear6 kt
0–1 km SRH0
0–3 km SRH8
Eff. SRH8
Storm Motion264° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.3
Thermo & Levels
PWAT1.99 in
0–3 km LR8.5 °C/km
700–500 LR5.0 °C/km
Total Totals47.2
LCL850 hPa
LFC1009 hPa
EL142 hPa
Freezing Lvl16,562 ft