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, Lower St. Bernard, LA, Northern Tangipahoa, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS 8:00 PM

Washington Parish, Louisiana, United States

Last updated: 2:49 PM CDT  ·  Refresh
35°C
Feels like 43°
Mostly Clear
▲ 37°  /  ▼ 23°
Wind
4 mph W
Humidity
55%
Dew Point
24°
Pressure
29.82 inHg
Visibility
10 mi
UV Index
8.8
Cloud Cover
30%
Sunrise
6:27 AM
Sunset
7:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Washington Parish is currently mostly clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2582 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 7:40PM.

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, Lower St. Bernard, LA, Northern Tangipahoa, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS
Expires 8:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
35°
47%
3 PM
34°
43%
4 PM
34°
26%
5 PM
33°
26%
6 PM
32°
28%
7 PM
31°
22%
8 PM
30°
21%
9 PM
29°
11%
10 PM
29°
8%
11 PM
28°
8%
12 AM
27°
5%
1 AM
26°
5%
2 AM
26°
5%
3 AM
26°
5%
4 AM
25°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
20%
8 AM
25°
20%
9 AM
29°
20%
10 AM
30°
23%
11 AM
31°
24%
12 PM
32°
34%
1 PM
34°
37%
7-Day Forecast
Today
37° 23°
Partly Cloudy with a 47% chance of rain.
Tue
39° 23°
Partly Cloudy with a 46% chance of rain.
Wed
39° 23°
Partly Cloudy with a 67% chance of rain.
Thu
38° 24°
Mostly Cloudy with a 74% chance of rain.
Fri
39° 23°
Drizzle, 60% chance.
Sat
38° 20°
Drizzle, 60% chance.
Sun
38° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 35° Mostly Clear 47% 4 mph W 55%
3 PM 34° Mostly Cloudy 43% 6 mph WSW 58%
4 PM 34° Overcast 26% 7 mph SW 60%
5 PM 33° Mostly Cloudy 26% 7 mph SW 63%
6 PM 32° Mostly Cloudy 28% 7 mph SW 67%
7 PM 31° Partly Cloudy 22% 5 mph SSW 69%
8 PM 30° Partly Cloudy 21% 5 mph SSW 72%
9 PM 29° Partly Cloudy 11% 7 mph SW 71%
10 PM 29° Partly Cloudy 8% 7 mph SW 74%
11 PM 28° Partly Cloudy 8% 6 mph SW 77%
12 AM 27° Mostly Cloudy 5% 6 mph WSW 80%
1 AM 26° Mostly Cloudy 5% 5 mph WSW 81%
2 AM 26° Mostly Cloudy 5% 5 mph WSW 82%
3 AM 26° Mostly Cloudy 5% 5 mph WSW 83%
4 AM 25° Mostly Cloudy 3% 4 mph WSW 83%
5 AM 23° Partly Cloudy 3% 5 mph W 84%
6 AM 23° Partly Cloudy 3% 5 mph W 84%
7 AM 24° Partly Cloudy 20% 6 mph W 80%
8 AM 25° Partly Cloudy 20% 6 mph W 75%
9 AM 29° Partly Cloudy 20% 6 mph W 71%
10 AM 30° Partly Cloudy 23% 7 mph W 66%
11 AM 31° Partly Cloudy 24% 7 mph W 61%
12 PM 32° Partly Cloudy 34% 7 mph W 56%
1 PM 34° Partly Cloudy 37% 6 mph W 54%
15-Day Forecast
Today
8/17
Partly Cloudy
47%
23°
37°
Tue
8/18
Partly Cloudy
46%
23°
39°
Wed
8/19
Partly Cloudy
67%
23°
39°
Thu
8/20
Mostly Cloudy
74%
24°
38°
Fri
8/21
Drizzle
60%
23°
39°
Sat
8/22
Drizzle
60%
20°
38°
Sun
8/23
Clear
19%
21°
38°
Mon
8/24
Clear
25%
19°
39°
Tue
8/25
Drizzle
60%
23°
38°
Wed
8/26
Drizzle
60%
21°
38°
Thu
8/27
Drizzle
60%
23°
37°
Fri
8/28
Drizzle
60%
23°
38°
Sat
8/29
Drizzle
60%
22°
38°
Sun
8/30
Clear
60%
22°
37°
Mon
8/31
Drizzle
60%
22°
37°
51
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
51 AQI 9.2 µg/m³
O3
Ground-level ozone
29 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 51 Moderate 29 51
Wed 48 Good 31 48
Thu 46 Good 32 46
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 Mon Aug 17, 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
SBCAPE3440 J/kg
MLCAPE2788 J/kg
MUCAPE3440 J/kg
SBCIN-2 J/kg
MLCIN-13 J/kg
Lifted Index-6.7
Kinematics
0–6 km Shear4 kt
0–1 km Shear2 kt
Eff. Shear12 kt
0–1 km SRH-5
0–3 km SRH-5
Eff. SRH-5
Storm Motion253° @ 16 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.9
Thermo & Levels
PWAT2.16 in
0–3 km LR8.3 °C/km
700–500 LR5.1 °C/km
Total Totals48.6
LCL854 hPa
LFC840 hPa
EL127 hPa
Freezing Lvl16,378 ft