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 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 Excessive Heat Watch 8:00 PM

Saint Helena Parish, Louisiana, United States

Last updated: 3:41 PM CDT  ·  Refresh
37°C
Feels like 38°
Clear
▲ 38°  /  ▼ 23°
Wind
6 mph SW
Humidity
34%
Dew Point
19°
Pressure
29.87 inHg
Visibility
10 mi
UV Index
8.3
Cloud Cover
0%
Sunrise
6:28 AM
Sunset
7:45 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Helena Parish is currently clear at 37°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2316 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 7:45PM.

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
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
Excessive Heat Watch
Expires 8:00 PM
57 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
3%
4 PM
37°
3%
5 PM
38°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
32°
3%
9 PM
30°
3%
10 PM
29°
3%
11 PM
29°
3%
12 AM
28°
3%
1 AM
27°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
23°
7%
6 AM
23°
6%
7 AM
24°
7%
8 AM
26°
7%
9 AM
28°
7%
10 AM
31°
7%
11 AM
32°
7%
12 PM
33°
7%
1 PM
34°
7%
2 PM
34°
7%
7-Day Forecast
Today
38° 23°
Clear.
Sat
38° 23°
Partly Cloudy.
Sun
39° 23°
Clear.
Mon
39° 24°
Clear with a 43% chance of rain.
Tue
40° 24°
Clear.
Wed
39° 23°
Drizzle, 50% chance.
Thu
41° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 37° Clear 3% 6 mph SW 34%
4 PM 37° Clear 3% 6 mph SW 33%
5 PM 38° Clear 3% 6 mph SW 38%
6 PM 36° Clear 3% 5 mph SW 44%
7 PM 34° Clear 3% 5 mph SSW 50%
8 PM 32° Clear 3% 4 mph SSW 57%
9 PM 30° Mostly Clear 3% 5 mph SSW 63%
10 PM 29° Mostly Clear 3% 5 mph SW 70%
11 PM 29° Clear 3% 5 mph SW 76%
12 AM 28° Clear 3% 5 mph WSW 82%
1 AM 27° Clear 3% 5 mph WSW 86%
2 AM 26° Clear 3% 4 mph WSW 90%
3 AM 26° Clear 3% 3 mph WSW 94%
4 AM 25° Mostly Clear 3% 3 mph WSW 96%
5 AM 23° Mostly Clear 7% 3 mph W 95%
6 AM 23° Haze 6% 3 mph WNW 95%
7 AM 24° Partly Cloudy 7% 3 mph WNW 91%
8 AM 26° Partly Cloudy 7% 4 mph WNW 84%
9 AM 28° Mostly Cloudy 7% 4 mph WNW 76%
10 AM 31° Partly Cloudy 7% 4 mph WNW 70%
11 AM 32° Partly Cloudy 7% 4 mph WNW 63%
12 PM 33° Mostly Clear 7% 4 mph WNW 56%
1 PM 34° Mostly Clear 7% 4 mph WNW 53%
2 PM 34° Mostly Clear 7% 3 mph W 51%
15-Day Forecast
Today
8/14
Clear
3%
23°
38°
Sat
8/15
Partly Cloudy
8%
23°
38°
Sun
8/16
Clear
15%
23°
39°
Mon
8/17
Clear
43%
24°
39°
Tue
8/18
Clear
9%
24°
40°
Wed
8/19
Drizzle
50%
23°
39°
Thu
8/20
Clear
19%
21°
41°
Fri
8/21
Drizzle
60%
23°
41°
Sat
8/22
Drizzle
60%
22°
40°
Sun
8/23
Drizzle
60%
21°
40°
Mon
8/24
Drizzle
60%
21°
38°
Tue
8/25
Drizzle
60%
23°
39°
Wed
8/26
Drizzle
60%
23°
39°
Thu
8/27
Drizzle
60%
23°
39°
Fri
8/28
Drizzle
60%
23°
39°
57
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
57 AQI 12.5 µg/m³
O3
Ground-level ozone
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 57 Moderate 31 57
Sun 52 Moderate 25 52
Mon 48 Good 24 48
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 Fri Aug 14, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE773 J/kg
MLCAPE411 J/kg
MUCAPE773 J/kg
SBCIN-39 J/kg
MLCIN-92 J/kg
Lifted Index-2.5
Kinematics
0–6 km Shear4 kt
0–1 km Shear1 kt
Eff. Shear6 kt
0–1 km SRH4
0–3 km SRH2
Eff. SRH2
Storm Motion181° @ 17 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index13.1
Thermo & Levels
PWAT1.35 in
0–3 km LR8.1 °C/km
700–500 LR6.1 °C/km
Total Totals44.7
LCL782 hPa
LFC668 hPa
EL193 hPa
Freezing Lvl16,808 ft