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, 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

Slidell, Louisiana

Last updated: 5:23 PM CDT  ·  Refresh
33°C
Feels like 38°
Clear
▲ 34°  /  ▼ 26°
Wind
8 mph SW
Humidity
56%
Dew Point
24°
Pressure
29.92 inHg
Visibility
10 mi
UV Index
5.9
Cloud Cover
7%
Sunrise
6:24 AM
Sunset
7:43 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Slidell is currently clear at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3175 J/kg) — isolated convective development possible. Sunrise: 6:24AM · Sunset: 7:43PM.

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, 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
33 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
9%
6 PM
33°
7%
7 PM
32°
4%
8 PM
31°
4%
9 PM
30°
4%
10 PM
29°
6%
11 PM
29°
6%
12 AM
29°
6%
1 AM
28°
6%
2 AM
28°
6%
3 AM
28°
9%
4 AM
27°
9%
5 AM
26°
13%
6 AM
26°
13%
7 AM
27°
13%
8 AM
28°
16%
9 AM
29°
16%
10 AM
30°
17%
11 AM
31°
22%
12 PM
32°
17%
1 PM
33°
17%
2 PM
33°
17%
3 PM
33°
17%
4 PM
33°
17%
7-Day Forecast
Today
34° 26°
Clear.
Thu
35° 26°
Partly Cloudy with a 22% chance of rain.
Fri
36° 26°
Mostly Clear.
Sat
36° 26°
Clear with a 22% chance of rain.
Sun
37° 26°
Mostly Clear with a 38% chance of rain.
Mon
37° 26°
Partly Cloudy.
Tue
37° 26°
Overcast with a 24% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 33° Clear 9% 8 mph SW 56%
6 PM 33° Mostly Clear 7% 8 mph SW 61%
7 PM 32° Partly Cloudy 4% 7 mph SW 64%
8 PM 31° Mostly Clear 4% 6 mph SW 66%
9 PM 30° Mostly Clear 4% 5 mph SW 69%
10 PM 29° Mostly Clear 6% 5 mph SW 72%
11 PM 29° Mostly Clear 6% 5 mph SW 76%
12 AM 29° Mostly Clear 6% 6 mph SW 80%
1 AM 28° Mostly Clear 6% 6 mph SW 82%
2 AM 28° Mostly Clear 6% 6 mph SW 83%
3 AM 28° Clear 9% 6 mph SW 84%
4 AM 27° Clear 9% 5 mph WSW 85%
5 AM 26° Mostly Clear 13% 5 mph WSW 86%
6 AM 26° Mostly Clear 13% 5 mph WSW 86%
7 AM 27° Mostly Clear 13% 5 mph WSW 85%
8 AM 28° Partly Cloudy 16% 6 mph WSW 78%
9 AM 29° Partly Cloudy 16% 7 mph WSW 73%
10 AM 30° Partly Cloudy 17% 8 mph WSW 68%
11 AM 31° Partly Cloudy 22% 8 mph WSW 63%
12 PM 32° Partly Cloudy 17% 7 mph WSW 57%
1 PM 33° Partly Cloudy 17% 7 mph WSW 54%
2 PM 33° Partly Cloudy 17% 7 mph WSW 53%
3 PM 33° Partly Cloudy 17% 7 mph SW 52%
4 PM 33° Partly Cloudy 17% 7 mph SW 51%
15-Day Forecast
Today
8/12
Clear
9%
26°
34°
Thu
8/13
Partly Cloudy
22%
26°
35°
Fri
8/14
Mostly Clear
3%
26°
36°
Sat
8/15
Clear
22%
26°
36°
Sun
8/16
Mostly Clear
38%
26°
37°
Mon
8/17
Partly Cloudy
16%
26°
37°
Tue
8/18
Overcast
24%
26°
37°
Wed
8/19
Partly Cloudy
60%
26°
38°
Thu
8/20
Drizzle
60%
26°
38°
Fri
8/21
Drizzle
50%
25°
38°
Sat
8/22
Drizzle
60%
26°
36°
Sun
8/23
Drizzle
60%
26°
35°
Mon
8/24
Drizzle
60%
25°
34°
Tue
8/25
Drizzle
60%
25°
34°
Wed
8/26
Drizzle
60%
25°
34°
33
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
32 AQI 5.8 µg/m³
O3
Ground-level ozone
Dominant
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 33 Good 33 32
Fri 41 Good 32 41
Sat 58 Moderate 31 58
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 Wed Aug 12, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3220 J/kg
MLCAPE2942 J/kg
MUCAPE3273 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-6.1
Kinematics
0–6 km Shear3 kt
0–1 km Shear4 kt
Eff. Shear5 kt
0–1 km SRH23
0–3 km SRH18
Eff. SRH18
Storm Motion355° @ 12 kt
0–1 km EHI0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.2
Thermo & Levels
PWAT1.92 in
0–3 km LR7.2 °C/km
700–500 LR5.7 °C/km
Total Totals46.3
LCL887 hPa
LFC1013 hPa
EL144 hPa
Freezing Lvl16,850 ft