Dense Fog 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 11:00 AM

Saint Helena Parish, Louisiana, United States

Last updated: 1:06 AM CDT  ·  Refresh
19°C
Feels like 21°
Partly Cloudy
▲ 33°  /  ▼ 18°
Wind
3 mph SE
Humidity
90%
Dew Point
17°
Pressure
29.86 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
36%
Sunrise
7:04 AM
Sunset
6:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Helena Parish is currently partly cloudy at 19°C. Precipitation is likely — peak probability 57% around 12 AM. Sunrise: 7:04AM · Sunset: 6:31PM.

Alerts

Dense Fog 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 11:00 AM
48 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
13%
1 AM
18°
5%
2 AM
18°
23%
3 AM
17°
31%
4 AM
17°
37%
5 AM
14°
42%
6 AM
14°
47%
7 AM
15°
47%
8 AM
17°
17%
9 AM
21°
17%
10 AM
24°
17%
11 AM
26°
17%
12 PM
28°
17%
1 PM
32°
17%
2 PM
32°
18%
3 PM
33°
18%
4 PM
32°
18%
5 PM
28°
3%
6 PM
26°
3%
7 PM
23°
3%
8 PM
23°
3%
9 PM
21°
3%
10 PM
21°
3%
11 PM
21°
56%
7-Day Forecast
Today
33° 18°
Partly Cloudy with a 47% chance of rain.
Fri
32° 16°
Partly Cloudy with a 56% chance of rain.
Sat
31° 8°
Clear.
Sun
22° 7°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 19° Partly Cloudy 13% 3 mph SE 90%
1 AM 18° Partly Cloudy 5% 3 mph SE 87%
2 AM 18° Mostly Cloudy 23% 2 mph ESE 90%
3 AM 17° Overcast 31% 2 mph E 92%
4 AM 17° Overcast 37% 2 mph NE 94%
5 AM 14° Overcast 42% 2 mph NNE 94%
6 AM 14° Fog 47% 3 mph NE 95%
7 AM 15° Fog 47% 2 mph NE 98%
8 AM 17° Fog 17% 2 mph ENE 91%
9 AM 21° Fog 17% 2 mph ESE 85%
10 AM 24° Mostly Cloudy 17% 4 mph SE 72%
11 AM 26° Partly Cloudy 17% 5 mph SSE 61%
12 PM 28° Clear 17% 5 mph SSE 51%
1 PM 32° Clear 17% 6 mph SSE 46%
2 PM 32° Clear 18% 7 mph SSE 42%
3 PM 33° Clear 18% 7 mph SSE 39%
4 PM 32° Clear 18% 7 mph SSE 44%
5 PM 28° Clear 3% 5 mph SSE 50%
6 PM 26° Clear 3% 5 mph SSE 58%
7 PM 23° Clear 3% 4 mph SSE 67%
8 PM 23° Clear 3% 4 mph SSE 73%
9 PM 21° Clear 3% 4 mph SSE 78%
10 PM 21° Partly Cloudy 3% 4 mph SSE 80%
11 PM 21° Mostly Cloudy 56% 3 mph SSE 81%
4-Day Forecast
Today
10/15
Partly Cloudy
47%
18°
33°
Fri
10/16
Partly Cloudy
56%
16°
32°
Sat
10/17
Clear
3%
8°
31°
Sun
10/18
Clear
3%
7°
22°
48
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
48 AQI 8.6 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 48 Good 46 48
Fri 53 Moderate 46 53
Sat 41 Good 41 37
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.

Model sounding data is unavailable for this location.