Excessive Heat Warning — St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, 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, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM

Slidell, Louisiana

Last updated: 6:24 PM CDT  ·  Refresh
32°C
Feels like 39°
Mostly Cloudy
▲ 33°  /  ▼ 26°
Wind
7 mph SW
Humidity
62%
Dew Point
24°
Pressure
29.83 inHg
Visibility
10 mi
UV Index
3.4
Cloud Cover
62%
Sunrise
6:16 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Slidell is currently mostly cloudy at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2117 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 7:55PM.

Alerts

Excessive Heat Warning
St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, 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, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
17%
7 PM
32°
29%
8 PM
31°
29%
9 PM
30°
24%
10 PM
29°
24%
11 PM
29°
24%
12 AM
29°
18%
1 AM
28°
19%
2 AM
28°
19%
3 AM
28°
19%
4 AM
27°
20%
5 AM
26°
20%
6 AM
26°
20%
7 AM
27°
21%
8 AM
28°
21%
9 AM
29°
21%
10 AM
30°
29%
11 AM
31°
29%
12 PM
31°
34%
1 PM
32°
35%
2 PM
32°
31%
3 PM
32°
32%
4 PM
32°
38%
5 PM
33°
38%
7-Day Forecast
Tonight
33° 26°
Mostly Cloudy with a 24% chance of rain.
Thu
34° 26°
Partly Cloudy with a 43% chance of rain.
Fri
33° 27°
Mostly Cloudy with a 48% chance of rain.
Sat
33° 27°
Partly Cloudy with a 65% chance of rain.
Sun
32° 24°
Rain, 68% chance.
Mon
32° 24°
Rain, 69% chance.
Tue
34° 24°
Rain, 57% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Cloudy 17% 7 mph SW 62%
7 PM 32° Mostly Cloudy 29% 6 mph SW 67%
8 PM 31° Mostly Cloudy 29% 5 mph SW 70%
9 PM 30° Mostly Cloudy 24% 5 mph WSW 72%
10 PM 29° Mostly Cloudy 24% 5 mph WSW 74%
11 PM 29° Mostly Cloudy 24% 6 mph W 76%
12 AM 29° Mostly Cloudy 18% 6 mph W 77%
1 AM 28° Mostly Cloudy 19% 6 mph W 78%
2 AM 28° Partly Cloudy 19% 6 mph W 80%
3 AM 28° Partly Cloudy 19% 5 mph W 82%
4 AM 27° Partly Cloudy 20% 5 mph W 84%
5 AM 26° Partly Cloudy 20% 5 mph W 84%
6 AM 26° Partly Cloudy 20% 5 mph W 85%
7 AM 27° Mostly Clear 21% 6 mph W 83%
8 AM 28° Mostly Clear 21% 7 mph W 77%
9 AM 29° Mostly Clear 21% 7 mph W 70%
10 AM 30° Mostly Clear 29% 7 mph W 65%
11 AM 31° Mostly Clear 29% 7 mph W 62%
12 PM 31° Mostly Clear 34% 7 mph W 59%
1 PM 32° Partly Cloudy 35% 7 mph WSW 58%
2 PM 32° Partly Cloudy 31% 7 mph W 59%
3 PM 32° Partly Cloudy 32% 7 mph W 60%
4 PM 32° Partly Cloudy 38% 7 mph W 61%
5 PM 33° Partly Cloudy 38% 7 mph WSW 62%
15-Day Forecast
Today
7/29
Mostly Cloudy
24%
26°
33°
Thu
7/30
Partly Cloudy
43%
26°
34°
Fri
7/31
Mostly Cloudy
48%
27°
33°
Sat
8/1
Partly Cloudy
65%
27°
33°
Sun
8/2
Rain
68%
24°
32°
Mon
8/3
Rain
69%
24°
32°
Tue
8/4
Rain
57%
24°
34°
Wed
8/5
Rain
55%
25°
34°
Thu
8/6
Drizzle
47%
25°
34°
Fri
8/7
Rain
66%
25°
34°
Sat
8/8
Rain
55%
26°
35°
Sun
8/9
Drizzle
60%
25°
34°
Mon
8/10
Drizzle
60%
25°
34°
Tue
8/11
Drizzle
60%
25°
34°
Wed
8/12
Drizzle
60%
25°
33°
55
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
55 AQI 11.5 µg/m³
O3
Ground-level ozone
43 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 55 Moderate 43 55
Fri 57 Moderate 37 57
Sat 47 Good 31 47
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 Jul 29, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2083 J/kg
MLCAPE1526 J/kg
MUCAPE2083 J/kg
SBCIN-67 J/kg
MLCIN0 J/kg
Lifted Index-5.1
Kinematics
0–6 km Shear11 kt
0–1 km Shear4 kt
Eff. Shear15 kt
0–1 km SRH-1
0–3 km SRH-10
Eff. SRH-10
Storm Motion288° @ 19 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index16.9
Thermo & Levels
PWAT1.84 in
0–3 km LR6.6 °C/km
700–500 LR5.9 °C/km
Total Totals43.9
LCL891 hPa
LFC803 hPa
EL140 hPa
Freezing Lvl16,663 ft