Severe Thunderstorm Watch 10:00 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

LAC083

Last updated: 9:08 PM CDT  ·  Refresh
87°F
Feels like 96°
Clear
▲ 96°  /  ▼ 76°
Wind
6 mph SSW
Humidity
66%
Dew Point
74°
Pressure
29.93 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
8%
Sunrise
6:34 AM
Sunset
7:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: LAC083 is currently clear at 87°F. Precipitation is likely — peak probability 57% around 3 PM. Atmospheric instability is elevated (CAPE up to 3233 J/kg) — isolated convective development possible. Sunrise: 6:34AM · Sunset: 7:41PM.

49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
88°
11%
9 PM
86°
21%
10 PM
85°
21%
11 PM
84°
14%
12 AM
83°
3%
1 AM
82°
3%
2 AM
81°
3%
3 AM
80°
3%
4 AM
80°
3%
5 AM
76°
3%
6 AM
76°
3%
7 AM
79°
16%
8 AM
83°
18%
9 AM
85°
19%
10 AM
88°
28%
11 AM
91°
29%
12 PM
94°
29%
1 PM
98°
41%
2 PM
99°
41%
3 PM
102°
57%
4 PM
98°
44%
5 PM
95°
48%
6 PM
92°
48%
7 PM
91°
49%
7-Day Forecast
Tonight
96° 76°
Mostly Clear.
Fri
102° 76°
Mostly Clear with a 43% chance of rain.
Sat
104° 75°
Partly Cloudy.
Sun
105° 78°
Mostly Clear with a 76% chance of rain.
Mon
102° 76°
Rain, 64% chance.
Tue
101° 76°
Rain, 70% chance.
Wed
101° 75°
Drizzle, 55% chance.
TimeTempConditionsPrecipWindHumidity
Now 88° Clear 11% 6 mph SSW 64%
9 PM 86° Clear 21% 7 mph SSW 76%
10 PM 85° Clear 21% 5 mph SW 78%
11 PM 84° Mostly Clear 14% 4 mph SW 80%
12 AM 83° Mostly Clear 3% 6 mph W 82%
1 AM 82° Mostly Clear 3% 6 mph W 82%
2 AM 81° Mostly Clear 3% 6 mph WNW 83%
3 AM 80° Mostly Clear 3% 5 mph WNW 83%
4 AM 80° Mostly Clear 3% 4 mph WNW 86%
5 AM 76° Mostly Clear 3% 4 mph WNW 86%
6 AM 76° Partly Cloudy 3% 4 mph W 87%
7 AM 79° Partly Cloudy 16% 5 mph W 82%
8 AM 83° Mostly Clear 18% 7 mph W 76%
9 AM 85° Mostly Clear 19% 8 mph W 70%
10 AM 88° Mostly Clear 28% 7 mph W 62%
11 AM 91° Partly Cloudy 29% 6 mph W 54%
12 PM 94° Partly Cloudy 29% 6 mph W 47%
1 PM 98° Partly Cloudy 41% 5 mph W 45%
2 PM 99° Mostly Clear 41% 5 mph W 43%
3 PM 102° Mostly Clear 57% 5 mph W 42%
4 PM 98° Partly Cloudy 44% 5 mph WSW 50%
5 PM 95° Partly Cloudy 48% 7 mph WSW 58%
6 PM 92° Partly Cloudy 48% 8 mph WSW 66%
7 PM 91° Mostly Cloudy 49% 7 mph WSW 68%
15-Day Forecast
Today
8/20
Mostly Clear
14%
76°
96°
Fri
8/21
Mostly Clear
43%
76°
102°
Sat
8/22
Partly Cloudy
14%
75°
104°
Sun
8/23
Mostly Clear
76%
78°
105°
Mon
8/24
Rain
64%
76°
102°
Tue
8/25
Rain
70%
76°
101°
Wed
8/26
Drizzle
55%
75°
101°
Thu
8/27
Rain
72%
75°
97°
Fri
8/28
Rain
69%
73°
101°
Sat
8/29
Rain
68%
74°
102°
Sun
8/30
Drizzle
60%
75°
102°
Mon
8/31
Drizzle
60%
74°
101°
Tue
9/1
Drizzle
60%
74°
100°
Wed
9/2
Drizzle
60%
74°
99°
Thu
9/3
Drizzle
60%
74°
99°
49
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
49 AQI 8.9 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 49 Good 31 49
Sat 48 Good 38 48
Sun 39 Good 39 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.

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 Thu Aug 20, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2230 J/kg
MLCAPE1404 J/kg
MUCAPE2230 J/kg
SBCIN-138 J/kg
MLCIN-70 J/kg
Lifted Index-4.1
Kinematics
0–6 km Shear17 kt
0–1 km Shear4 kt
Eff. Shear17 kt
0–1 km SRH18
0–3 km SRH55
Eff. SRH55
Storm Motion79° @ 13 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.2
Thermo & Levels
PWAT1.72 in
0–3 km LR6.3 °C/km
700–500 LR5.6 °C/km
Total Totals44.3
LCL908 hPa
LFC826 hPa
EL160 hPa
Freezing Lvl16,969 ft