Excessive Heat Watch 8:00 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

Slidell, Louisiana

Last updated: 10:58 PM CDT  ·  Refresh
27°C
Feels like 30°
Clear
▲ 34°  /  ▼ 26°
Wind
2 mph W
Humidity
79%
Dew Point
23°
Pressure
30.04 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
6%
Sunrise
6:26 AM
Sunset
7:39 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Slidell is currently clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2603 J/kg) — isolated convective development possible. Sunrise: 6:26AM · Sunset: 7:39PM.

Alerts

Excessive Heat Watch
Expires 8:00 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
Expires 8:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
21%
11 PM
28°
28%
12 AM
28°
14%
1 AM
28°
14%
2 AM
28°
15%
3 AM
28°
16%
4 AM
28°
11%
5 AM
26°
7%
6 AM
26°
8%
7 AM
28°
20%
8 AM
30°
18%
9 AM
31°
18%
10 AM
32°
27%
11 AM
33°
28%
12 PM
34°
28%
1 PM
34°
35%
2 PM
34°
36%
3 PM
34°
32%
4 PM
33°
30%
5 PM
34°
34%
6 PM
33°
19%
7 PM
32°
15%
8 PM
32°
15%
9 PM
31°
15%
7-Day Forecast
Tonight
34° 26°
Clear with a 21% chance of rain.
Mon
35° 26°
Partly Cloudy with a 35% chance of rain.
Tue
37° 27°
Partly Cloudy with a 51% chance of rain.
Wed
36° 27°
Mostly Clear with a 57% chance of rain.
Thu
37° 26°
Partly Cloudy with a 30% chance of rain.
Fri
34° 25°
Rain, 82% chance.
Sat
36° 24°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 21% 2 mph W 79%
11 PM 28° Clear 28% 3 mph SW 83%
12 AM 28° Clear 14% 4 mph SW 84%
1 AM 28° Clear 14% 5 mph WSW 85%
2 AM 28° Clear 15% 5 mph WSW 86%
3 AM 28° Mostly Clear 16% 5 mph WSW 87%
4 AM 28° Mostly Clear 11% 5 mph W 87%
5 AM 26° Mostly Clear 7% 5 mph W 88%
6 AM 26° Mostly Clear 8% 4 mph WNW 88%
7 AM 28° Mostly Clear 20% 6 mph WNW 81%
8 AM 30° Clear 18% 6 mph WNW 72%
9 AM 31° Clear 18% 6 mph WNW 64%
10 AM 32° Partly Cloudy 27% 5 mph W 59%
11 AM 33° Partly Cloudy 28% 5 mph WSW 55%
12 PM 34° Overcast 28% 6 mph SW 51%
1 PM 34° Partly Cloudy 35% 7 mph SW 50%
2 PM 34° Partly Cloudy 36% 7 mph SW 49%
3 PM 34° Partly Cloudy 32% 7 mph SW 47%
4 PM 33° Partly Cloudy 30% 6 mph SW 52%
5 PM 34° Partly Cloudy 34% 7 mph SW 60%
6 PM 33° Mostly Cloudy 19% 8 mph SW 65%
7 PM 32° Mostly Cloudy 15% 7 mph SW 67%
8 PM 32° Partly Cloudy 15% 6 mph SW 69%
9 PM 31° Partly Cloudy 15% 8 mph SSW 71%
15-Day Forecast
Today
8/16
Clear
21%
26°
34°
Mon
8/17
Partly Cloudy
35%
26°
35°
Tue
8/18
Partly Cloudy
51%
27°
37°
Wed
8/19
Mostly Clear
57%
27°
36°
Thu
8/20
Partly Cloudy
30%
26°
37°
Fri
8/21
Rain
82%
25°
34°
Sat
8/22
Rain
64%
24°
36°
Sun
8/23
Rain
28%
24°
36°
Mon
8/24
Thunderstorm
44%
25°
35°
Tue
8/25
Drizzle
44%
25°
36°
Wed
8/26
Drizzle
60%
25°
35°
Thu
8/27
Drizzle
60%
25°
36°
Fri
8/28
Drizzle
60%
25°
36°
Sat
8/29
Drizzle
60%
25°
35°
Sun
8/30
Drizzle
60%
25°
34°
53
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
53 AQI 10.4 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 53 Moderate 33 53
Tue 54 Moderate 38 54
Wed 52 Moderate 39 52
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 Mon Aug 17, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE733 J/kg
MLCAPE1046 J/kg
MUCAPE1491 J/kg
SBCIN-220 J/kg
MLCIN-102 J/kg
Lifted Index-2.5
Kinematics
0–6 km Shear6 kt
0–1 km Shear9 kt
Eff. Shear4 kt
0–1 km SRH-24
0–3 km SRH55
Eff. SRH55
Storm Motion114° @ 16 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.0
Thermo & Levels
PWAT2.26 in
0–3 km LR5.3 °C/km
700–500 LR5.6 °C/km
Total Totals46.1
LCL959 hPa
LFC765 hPa
EL191 hPa
Freezing Lvl16,657 ft