Saint Helena Parish, Louisiana, United States

Last updated: 12:12 AM CDT  ·  Refresh
24°C
Feels like 29°
Partly Cloudy
▲ 34°  /  ▼ 21°
Wind
2 mph SE
Humidity
94%
Dew Point
23°
Pressure
29.89 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
48%
Sunrise
6:24 AM
Sunset
7:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Helena Parish is currently partly cloudy at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1839 J/kg) — isolated convective development possible. Sunrise: 6:24AM · Sunset: 7:52PM.

Alerts

No active alerts for this location.
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
21%
1 AM
23°
16%
2 AM
23°
17%
3 AM
23°
9%
4 AM
23°
18%
5 AM
21°
19%
6 AM
21°
19%
7 AM
21°
23%
8 AM
23°
31%
9 AM
27°
32%
10 AM
28°
36%
11 AM
29°
32%
12 PM
30°
29%
1 PM
33°
29%
2 PM
33°
31%
3 PM
33°
31%
4 PM
33°
26%
5 PM
33°
34%
6 PM
31°
30%
7 PM
29°
11%
8 PM
28°
14%
9 PM
27°
14%
10 PM
26°
24%
11 PM
24°
26%
7-Day Forecast
Today
34° 21°
Partly Cloudy with a 32% chance of rain.
Sat
37° 21°
Partly Cloudy with a 26% chance of rain.
Sun
36° 21°
Mostly Clear with a 57% chance of rain.
Mon
36° 22°
Partly Cloudy with a 45% chance of rain.
Tue
37° 22°
Thunderstorm, 51% chance.
Wed
37° 22°
Drizzle, 52% chance.
Thu
37° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 24° Partly Cloudy 21% 2 mph SE 94%
1 AM 23° Partly Cloudy 16% 3 mph SSE 95%
2 AM 23° Mostly Clear 17% 2 mph SE 95%
3 AM 23° Mostly Clear 9% 2 mph ESE 96%
4 AM 23° Mostly Clear 18% 2 mph ENE 96%
5 AM 21° Mostly Clear 19% 2 mph ENE 95%
6 AM 21° Partly Cloudy 19% 2 mph ENE 95%
7 AM 21° Partly Cloudy 23% 2 mph E 94%
8 AM 23° Mostly Clear 31% 2 mph E 87%
9 AM 27° Mostly Clear 32% 2 mph ESE 79%
10 AM 28° Mostly Clear 36% 2 mph ESE 72%
11 AM 29° Mostly Clear 32% 2 mph ESE 65%
12 PM 30° Partly Cloudy 29% 2 mph ESE 60%
1 PM 33° Mostly Cloudy 29% 3 mph ESE 55%
2 PM 33° Mostly Cloudy 31% 4 mph SE 53%
3 PM 33° Mostly Cloudy 31% 4 mph SE 50%
4 PM 33° Mostly Cloudy 26% 4 mph SE 50%
5 PM 33° Partly Cloudy 34% 4 mph SE 55%
6 PM 31° Partly Cloudy 30% 4 mph SSE 61%
7 PM 29° Partly Cloudy 11% 4 mph SSE 67%
8 PM 28° Partly Cloudy 14% 4 mph SSE 73%
9 PM 27° Partly Cloudy 14% 4 mph SSE 77%
10 PM 26° Mostly Cloudy 24% 4 mph SSE 80%
11 PM 24° Partly Cloudy 26% 3 mph SSE 83%
15-Day Forecast
Today
8/7
Partly Cloudy
32%
21°
34°
Sat
8/8
Partly Cloudy
26%
21°
37°
Sun
8/9
Mostly Clear
57%
21°
36°
Mon
8/10
Partly Cloudy
45%
22°
36°
Tue
8/11
Thunderstorm
51%
22°
37°
Wed
8/12
Drizzle
52%
22°
37°
Thu
8/13
Clear
17%
22°
37°
Fri
8/14
Rain
68%
22°
37°
Sat
8/15
Rain
68%
22°
37°
Sun
8/16
Clear
44%
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
Clear
60%
23°
37°
Fri
8/21
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
SBCAPE1137 J/kg
MLCAPE1377 J/kg
MUCAPE2034 J/kg
SBCIN-122 J/kg
MLCIN0 J/kg
Lifted Index-3.2
Kinematics
0–6 km Shear10 kt
0–1 km Shear10 kt
Eff. Shear10 kt
0–1 km SRH29
0–3 km SRH-17
Eff. SRH-17
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
LCL994 hPa
LFC783 hPa
EL211 hPa
Freezing Lvl15,509 ft