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, Central Plaquemines, LA, Central Jefferson, 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: 1:36 AM CDT  ·  Refresh
28°C
Feels like 32°
Clear
▲ 36°  /  ▼ 27°
Wind
5 mph W
Humidity
80%
Dew Point
25°
Pressure
29.85 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
3%
Sunrise
6:15 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Slidell is currently clear at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1867 J/kg) — isolated convective development possible. Sunrise: 6:15AM · 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, Central Plaquemines, LA, Central Jefferson, 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
35 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
13%
2 AM
28°
13%
3 AM
28°
4%
4 AM
28°
4%
5 AM
26°
4%
6 AM
26°
4%
7 AM
27°
4%
8 AM
29°
4%
9 AM
30°
4%
10 AM
31°
5%
11 AM
33°
5%
12 PM
34°
5%
1 PM
34°
5%
2 PM
34°
5%
3 PM
34°
5%
4 PM
34°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
32°
3%
10 PM
31°
3%
11 PM
31°
3%
12 AM
31°
3%
7-Day Forecast
Today
36° 27°
Mostly Clear.
Wed
36° 27°
Partly Cloudy with a 29% chance of rain.
Thu
35° 27°
Partly Cloudy with a 71% chance of rain.
Fri
34° 26°
Partly Cloudy with a 63% chance of rain.
Sat
34° 26°
Thunderstorm, 51% chance.
Sun
34° 24°
Rain, 82% chance.
Mon
36° 25°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 13% 5 mph W 80%
2 AM 28° Clear 13% 6 mph W 82%
3 AM 28° Clear 4% 5 mph W 83%
4 AM 28° Clear 4% 6 mph W 84%
5 AM 26° Partly Cloudy 4% 6 mph WNW 86%
6 AM 26° Partly Cloudy 4% 6 mph WNW 86%
7 AM 27° Partly Cloudy 4% 7 mph WNW 81%
8 AM 29° Partly Cloudy 4% 7 mph WNW 73%
9 AM 30° Partly Cloudy 4% 7 mph WNW 66%
10 AM 31° Mostly Clear 5% 6 mph WNW 60%
11 AM 33° Mostly Clear 5% 6 mph WNW 55%
12 PM 34° Mostly Clear 5% 6 mph W 51%
1 PM 34° Mostly Clear 5% 7 mph WSW 49%
2 PM 34° Mostly Clear 5% 8 mph WSW 49%
3 PM 34° Mostly Clear 5% 8 mph WSW 49%
4 PM 34° Mostly Clear 3% 7 mph WSW 50%
5 PM 36° Mostly Clear 3% 7 mph WSW 52%
6 PM 34° Mostly Clear 3% 6 mph WSW 55%
7 PM 34° Mostly Clear 3% 6 mph WSW 59%
8 PM 33° Clear 3% 6 mph WSW 64%
9 PM 32° Clear 3% 6 mph WSW 68%
10 PM 31° Clear 3% 6 mph WSW 70%
11 PM 31° Mostly Clear 3% 6 mph WSW 72%
12 AM 31° Partly Cloudy 3% 7 mph WSW 74%
15-Day Forecast
Today
7/28
Mostly Clear
13%
27°
36°
Wed
7/29
Partly Cloudy
29%
27°
36°
Thu
7/30
Partly Cloudy
71%
27°
35°
Fri
7/31
Partly Cloudy
63%
26°
34°
Sat
8/1
Thunderstorm
51%
26°
34°
Sun
8/2
Rain
82%
24°
34°
Mon
8/3
Drizzle
71%
25°
36°
Tue
8/4
Rain
68%
26°
36°
Wed
8/5
Thunderstorm
44%
26°
36°
Thu
8/6
Drizzle
51%
25°
35°
Fri
8/7
Drizzle
60%
26°
34°
Sat
8/8
Drizzle
60%
26°
34°
Sun
8/9
Drizzle
60%
25°
34°
Mon
8/10
Drizzle
60%
25°
35°
Tue
8/11
Rain
90%
25°
36°
35
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
35 AQI 6.3 µg/m³
O3
Ground-level ozone
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 35 Good 31 35
Wed 47 Good 39 47
Thu 53 Moderate 40 53
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 Tue Jul 28, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1799 J/kg
MLCAPE1357 J/kg
MUCAPE2003 J/kg
SBCIN-130 J/kg
MLCIN0 J/kg
Lifted Index-3.6
Kinematics
0–6 km Shear25 kt
0–1 km Shear7 kt
Eff. Shear26 kt
0–1 km SRH30
0–3 km SRH13
Eff. SRH13
Storm Motion333° @ 18 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.2
STP (eff)0.1
Supercell0.4
K-Index21.6
Thermo & Levels
PWAT1.77 in
0–3 km LR5.4 °C/km
700–500 LR5.3 °C/km
Total Totals42.1
LCL960 hPa
LFC819 hPa
EL158 hPa
Freezing Lvl17,073 ft