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

MSC057

Last updated: 9:22 PM CDT  ·  Refresh
86°F
Feels like 95°
Clear
▲ 96°  /  ▼ 76°
Wind
7 mph SSW
Humidity
69%
Dew Point
75°
Pressure
29.94 inHg
Visibility
9 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: MSC057 is currently clear at 86°F. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3187 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
86°
3%
10 PM
86°
21%
11 PM
84°
21%
12 AM
84°
14%
1 AM
82°
3%
2 AM
82°
3%
3 AM
81°
3%
4 AM
81°
3%
5 AM
77°
3%
6 AM
76°
3%
7 AM
77°
8%
8 AM
80°
16%
9 AM
83°
18%
10 AM
86°
28%
11 AM
89°
28%
12 PM
92°
29%
1 PM
98°
33%
2 PM
98°
33%
3 PM
97°
48%
4 PM
98°
47%
5 PM
96°
48%
6 PM
94°
48%
7 PM
92°
48%
8 PM
91°
49%
7-Day Forecast
Tonight
96° 76°
Clear.
Fri
100° 76°
Partly Cloudy with a 48% chance of rain.
Sat
104° 75°
Partly Cloudy.
Sun
105° 78°
Mostly Clear with a 76% chance of rain.
Mon
102° 77°
Rain, 64% chance.
Tue
101° 76°
Rain, 70% chance.
Wed
101° 76°
Drizzle, 55% chance.
TimeTempConditionsPrecipWindHumidity
Now 86° Clear 3% 7 mph SSW 68%
10 PM 86° Clear 21% 6 mph SW 78%
11 PM 84° Clear 21% 4 mph SW 79%
12 AM 84° Mostly Clear 14% 5 mph WSW 81%
1 AM 82° Mostly Clear 3% 5 mph W 83%
2 AM 82° Mostly Clear 3% 4 mph WSW 84%
3 AM 81° Clear 3% 4 mph WSW 85%
4 AM 81° Clear 3% 4 mph WSW 87%
5 AM 77° Mostly Clear 3% 3 mph WSW 87%
6 AM 76° Mostly Clear 3% 3 mph WSW 87%
7 AM 77° Partly Cloudy 8% 4 mph W 85%
8 AM 80° Partly Cloudy 16% 6 mph W 79%
9 AM 83° Partly Cloudy 18% 7 mph W 73%
10 AM 86° Partly Cloudy 28% 7 mph W 67%
11 AM 89° Partly Cloudy 28% 6 mph W 59%
12 PM 92° Partly Cloudy 29% 6 mph W 52%
1 PM 98° Partly Cloudy 33% 5 mph W 46%
2 PM 98° Partly Cloudy 33% 6 mph W 46%
3 PM 97° Partly Cloudy 48% 7 mph W 47%
4 PM 98° Partly Cloudy 47% 8 mph WSW 49%
5 PM 96° Partly Cloudy 48% 7 mph WSW 55%
6 PM 94° Partly Cloudy 48% 7 mph WSW 62%
7 PM 92° Mostly Cloudy 48% 8 mph WSW 67%
8 PM 91° Mostly Cloudy 49% 6 mph SW 69%
15-Day Forecast
Today
8/20
Clear
3%
76°
96°
Fri
8/21
Partly Cloudy
48%
76°
100°
Sat
8/22
Partly Cloudy
14%
75°
104°
Sun
8/23
Mostly Clear
76%
78°
105°
Mon
8/24
Rain
64%
77°
102°
Tue
8/25
Rain
70%
76°
101°
Wed
8/26
Drizzle
55%
76°
101°
Thu
8/27
Rain
72%
75°
97°
Fri
8/28
Rain
69%
74°
100°
Sat
8/29
Rain
68%
75°
101°
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 Fri Aug 21, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2391 J/kg
MLCAPE1293 J/kg
MUCAPE2391 J/kg
SBCIN-145 J/kg
MLCIN-68 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear17 kt
0–1 km Shear3 kt
Eff. Shear17 kt
0–1 km SRH14
0–3 km SRH35
Eff. SRH35
Storm Motion83° @ 13 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.3
Thermo & Levels
PWAT1.68 in
0–3 km LR6.2 °C/km
700–500 LR5.7 °C/km
Total Totals44.4
LCL927 hPa
LFC842 hPa
EL150 hPa
Freezing Lvl16,719 ft