Excessive Heat Watch 8:00 PM Excessive 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 Extreme Heat Watch 8:00 PM

Slidell, Louisiana

Last updated: 10:07 PM CDT  ·  Refresh
30°C
Feels like 36°
Clear
▲ 34°  /  ▼ 26°
Wind
5 mph S
Humidity
70%
Dew Point
24°
Pressure
30.08 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:26 AM
Sunset
7:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Slidell is currently clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2572 J/kg) — isolated convective development possible. Sunrise: 6:26AM · Sunset: 7:40PM.

Alerts

Excessive Heat Watch
Expires 8:00 PM
Excessive 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
Expires 8:00 PM
Extreme Heat Watch
Expires 8:00 PM
49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
4%
11 PM
30°
16%
12 AM
29°
16%
1 AM
29°
4%
2 AM
28°
4%
3 AM
28°
4%
4 AM
27°
4%
5 AM
27°
4%
6 AM
26°
4%
7 AM
27°
5%
8 AM
29°
18%
9 AM
29°
21%
10 AM
31°
25%
11 AM
32°
33%
12 PM
33°
45%
1 PM
34°
44%
2 PM
34°
35%
3 PM
33°
38%
4 PM
33°
33%
5 PM
35°
33%
6 PM
34°
24%
7 PM
34°
18%
8 PM
33°
15%
9 PM
31°
16%
7-Day Forecast
Tonight
34° 26°
Clear.
Sun
35° 26°
Partly Cloudy with a 44% chance of rain.
Mon
38° 26°
Mostly Clear with a 55% chance of rain.
Tue
37° 27°
Clear with a 63% chance of rain.
Wed
37° 25°
Thunderstorm, 50% chance.
Thu
37° 25°
Drizzle, 51% chance.
Fri
37° 26°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Clear 4% 5 mph S 70%
11 PM 30° Clear 16% 6 mph SSW 76%
12 AM 29° Clear 16% 5 mph SSW 78%
1 AM 29° Clear 4% 5 mph SW 80%
2 AM 28° Clear 4% 4 mph SW 82%
3 AM 28° Clear 4% 4 mph WSW 85%
4 AM 27° Clear 4% 4 mph WSW 86%
5 AM 27° Clear 4% 4 mph W 88%
6 AM 26° Mostly Clear 4% 4 mph WNW 89%
7 AM 27° Mostly Clear 5% 4 mph NW 88%
8 AM 29° Mostly Clear 18% 6 mph NW 78%
9 AM 29° Mostly Clear 21% 6 mph NW 68%
10 AM 31° Mostly Clear 25% 5 mph NW 63%
11 AM 32° Mostly Clear 33% 4 mph WNW 60%
12 PM 33° Mostly Clear 45% 3 mph WSW 57%
1 PM 34° Partly Cloudy 44% 4 mph SW 55%
2 PM 34° Partly Cloudy 35% 4 mph SSW 55%
3 PM 33° Partly Cloudy 38% 5 mph SSW 56%
4 PM 33° Partly Cloudy 33% 6 mph S 57%
5 PM 35° Mostly Cloudy 33% 5 mph S 58%
6 PM 34° Mostly Cloudy 24% 5 mph SSW 59%
7 PM 34° Mostly Cloudy 18% 6 mph SSW 60%
8 PM 33° Mostly Cloudy 15% 5 mph SSW 62%
9 PM 31° Partly Cloudy 16% 5 mph SW 65%
15-Day Forecast
Today
8/15
Clear
4%
26°
34°
Sun
8/16
Partly Cloudy
44%
26°
35°
Mon
8/17
Mostly Clear
55%
26°
38°
Tue
8/18
Clear
63%
27°
37°
Wed
8/19
Thunderstorm
50%
25°
37°
Thu
8/20
Drizzle
51%
25°
37°
Fri
8/21
Rain
64%
26°
37°
Sat
8/22
Rain
41%
24°
37°
Sun
8/23
Clear
44%
24°
35°
Mon
8/24
Drizzle
44%
24°
36°
Tue
8/25
Clear
25%
24°
36°
Wed
8/26
Drizzle
60%
26°
36°
Thu
8/27
Drizzle
60%
25°
36°
Fri
8/28
Drizzle
60%
25°
35°
Sat
8/29
Drizzle
60%
25°
34°
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
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 49 Good 36 49
Mon 52 Moderate 35 52
Tue 54 Moderate 38 54
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 Sun Aug 16, 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
SBCAPE2386 J/kg
MLCAPE1726 J/kg
MUCAPE2386 J/kg
SBCIN-102 J/kg
MLCIN-57 J/kg
Lifted Index-5.9
Kinematics
0–6 km Shear20 kt
0–1 km Shear4 kt
Eff. Shear10 kt
0–1 km SRH27
0–3 km SRH61
Eff. SRH61
Storm Motion86° @ 18 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index25.7
Thermo & Levels
PWAT1.87 in
0–3 km LR5.8 °C/km
700–500 LR6.3 °C/km
Total Totals48.3
LCL937 hPa
LFC840 hPa
EL144 hPa
Freezing Lvl16,634 ft