Saint Helena Parish, Louisiana, United States

Last updated: 11:27 PM CDT  ·  Refresh
24°C
Feels like 29°
Mostly Cloudy
▲ 30°  /  ▼ 21°
Wind
2 mph SE
Humidity
94%
Dew Point
23°
Pressure
29.89 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
64%
Sunrise
6:23 AM
Sunset
7:53 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Helena Parish is currently mostly cloudy at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1858 J/kg) — isolated convective development possible. Sunrise: 6:23AM · Sunset: 7:53PM.

Alerts

No active alerts for this location.
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
22%
12 AM
24°
13%
1 AM
23°
9%
2 AM
23°
9%
3 AM
23°
10%
4 AM
23°
19%
5 AM
21°
19%
6 AM
21°
19%
7 AM
22°
31%
8 AM
24°
32%
9 AM
27°
38%
10 AM
29°
37%
11 AM
30°
32%
12 PM
31°
29%
1 PM
33°
30%
2 PM
33°
31%
3 PM
34°
38%
4 PM
33°
40%
5 PM
32°
44%
6 PM
30°
37%
7 PM
29°
21%
8 PM
28°
21%
9 PM
27°
21%
10 PM
26°
11%
7-Day Forecast
Tonight
30° 21°
Mostly Cloudy with a 22% chance of rain.
Fri
34° 21°
Partly Cloudy with a 44% chance of rain.
Sat
37° 21°
Partly Cloudy with a 26% chance of rain.
Sun
36° 21°
Partly Cloudy with a 57% chance of rain.
Mon
36° 22°
Drizzle, 50% chance.
Tue
37° 22°
Rain, 64% chance.
Wed
37° 22°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Cloudy 22% 2 mph SE 94%
12 AM 24° Partly Cloudy 13% 3 mph SE 95%
1 AM 23° Partly Cloudy 9% 2 mph SSE 95%
2 AM 23° Mostly Clear 9% 2 mph SE 95%
3 AM 23° Mostly Clear 10% 2 mph E 96%
4 AM 23° Mostly Clear 19% 2 mph ENE 96%
5 AM 21° Mostly Clear 19% 2 mph ENE 96%
6 AM 21° Partly Cloudy 19% 2 mph ENE 95%
7 AM 22° Mostly Clear 31% 2 mph E 92%
8 AM 24° Mostly Clear 32% 2 mph ESE 84%
9 AM 27° Mostly Clear 38% 2 mph ESE 76%
10 AM 29° Mostly Clear 37% 2 mph ESE 69%
11 AM 30° Partly Cloudy 32% 2 mph ESE 63%
12 PM 31° Partly Cloudy 29% 2 mph ESE 57%
1 PM 33° Mostly Cloudy 30% 3 mph SE 53%
2 PM 33° Mostly Cloudy 31% 4 mph SE 50%
3 PM 34° Mostly Cloudy 38% 4 mph SE 48%
4 PM 33° Mostly Cloudy 40% 4 mph SE 50%
5 PM 32° Partly Cloudy 44% 4 mph SSE 57%
6 PM 30° Partly Cloudy 37% 5 mph SSE 62%
7 PM 29° Partly Cloudy 21% 4 mph SSE 67%
8 PM 28° Partly Cloudy 21% 4 mph SSE 72%
9 PM 27° Partly Cloudy 21% 4 mph SSE 76%
10 PM 26° Mostly Cloudy 11% 4 mph SSE 80%
15-Day Forecast
Today
8/6
Mostly Cloudy
22%
21°
30°
Fri
8/7
Partly Cloudy
44%
21°
34°
Sat
8/8
Partly Cloudy
26%
21°
37°
Sun
8/9
Partly Cloudy
57%
21°
36°
Mon
8/10
Drizzle
50%
22°
36°
Tue
8/11
Rain
64%
22°
37°
Wed
8/12
Drizzle
52%
22°
37°
Thu
8/13
Clear
17%
22°
37°
Fri
8/14
Drizzle
43%
22°
38°
Sat
8/15
Drizzle
44%
22°
38°
Sun
8/16
Clear
60%
22°
37°
Mon
8/17
Drizzle
60%
23°
37°
Tue
8/18
Drizzle
60%
23°
37°
Wed
8/19
Rain
90%
23°
37°
Thu
8/20
Drizzle
60%
23°
37°
56
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
56 AQI 11.7 µg/m³
O3
Ground-level ozone
39 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 56 Moderate 39 56
Sat 49 Good 33 49
Sun 29 Good 26 29
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 7, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1158 J/kg
MLCAPE1381 J/kg
MUCAPE2034 J/kg
SBCIN-120 J/kg
MLCIN0 J/kg
Lifted Index-3.2
Kinematics
0–6 km Shear10 kt
0–1 km Shear10 kt
Eff. Shear9 kt
0–1 km SRH30
0–3 km SRH-16
Eff. SRH-16
Storm Motion243° @ 14 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.0
K-Index35.7
Thermo & Levels
PWAT2.15 in
0–3 km LR5.0 °C/km
700–500 LR5.6 °C/km
Total Totals44.9
LCL993 hPa
LFC785 hPa
EL210 hPa
Freezing Lvl15,512 ft