Tropical Storm Warning — Upper St. Charles, LA 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 8:00 PM Coastal Flood Advisory — St. John The Baptist, LA, Southwestern St. Tammany, LA, Lower Tangipahoa, LA, Coastal Jefferson, LA, Lower Lafourche, LA, Lower Terrebonne, LA, Upper St. Charles, LA 4:00 AM

Norco, Louisiana

Last updated: 5:39 PM CDT  ·  Refresh
32°C
Feels like 40°
Rain
▲ 35°  /  ▼ 26°
Wind
7 mph NW
Humidity
70%
Dew Point
26°
Pressure
29.75 inHg
Visibility
10 mi
UV Index
4.7
Cloud Cover
63%
Sunrise
6:14 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Norco is currently rain at 32°C. Precipitation is likely — peak probability 65% around 6 PM. Atmospheric instability is elevated (CAPE up to 3146 J/kg) — isolated convective development possible. Sunrise: 6:14AM · Sunset: 8:01PM.

64 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
50%
6 PM
32°
65%
7 PM
31°
49%
8 PM
30°
45%
9 PM
29°
36%
10 PM
28°
40%
11 PM
28°
40%
12 AM
28°
21%
1 AM
27°
9%
2 AM
27°
9%
3 AM
27°
12%
4 AM
26°
13%
5 AM
26°
10%
6 AM
26°
8%
7 AM
27°
14%
8 AM
27°
23%
9 AM
29°
24%
10 AM
30°
31%
11 AM
31°
31%
12 PM
32°
32%
1 PM
33°
43%
2 PM
33°
47%
3 PM
33°
48%
4 PM
32°
52%
7-Day Forecast
Today
35° 26°
Rain, 50% chance.
Wed
35° 26°
Mostly Cloudy with a 61% chance of rain.
Thu
34° 26°
Partly Cloudy with a 75% chance of rain.
Fri
35° 25°
Partly Cloudy with a 47% chance of rain.
Sat
36° 24°
Drizzle, 59% chance.
Sun
36° 24°
Mostly Cloudy with a 33% chance of rain.
Mon
36° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 32° Rain 50% 7 mph NW 70%
6 PM 32° Rain 65% 7 mph WNW 79%
7 PM 31° Heavy Rain 49% 9 mph WNW 80%
8 PM 30° Partly Cloudy 45% 8 mph NW 79%
9 PM 29° Partly Cloudy 36% 8 mph NW 78%
10 PM 28° Partly Cloudy 40% 7 mph NNW 79%
11 PM 28° Partly Cloudy 40% 7 mph NNW 80%
12 AM 28° Partly Cloudy 21% 7 mph N 81%
1 AM 27° Partly Cloudy 9% 7 mph N 81%
2 AM 27° Partly Cloudy 9% 8 mph N 80%
3 AM 27° Partly Cloudy 12% 9 mph NNW 80%
4 AM 26° Partly Cloudy 13% 10 mph NNW 80%
5 AM 26° Partly Cloudy 10% 11 mph NNW 81%
6 AM 26° Partly Cloudy 8% 13 mph NNW 82%
7 AM 27° Partly Cloudy 14% 13 mph N 81%
8 AM 27° Partly Cloudy 23% 13 mph N 79%
9 AM 29° Partly Cloudy 24% 14 mph N 77%
10 AM 30° Partly Cloudy 31% 14 mph N 74%
11 AM 31° Partly Cloudy 31% 15 mph NNE 70%
12 PM 32° Partly Cloudy 32% 15 mph NNE 67%
1 PM 33° Mostly Cloudy 43% 16 mph NNE 68%
2 PM 33° Mostly Cloudy 47% 16 mph NNE 71%
3 PM 33° Mostly Cloudy 48% 16 mph NNE 73%
4 PM 32° Mostly Cloudy 52% 16 mph NNE 76%
15-Day Forecast
Today
7/21
Rain
50%
26°
35°
Wed
7/22
Mostly Cloudy
61%
26°
35°
Thu
7/23
Partly Cloudy
75%
26°
34°
Fri
7/24
Partly Cloudy
47%
25°
35°
Sat
7/25
Drizzle
59%
24°
36°
Sun
7/26
Mostly Cloudy
33%
24°
36°
Mon
7/27
Clear
17%
24°
36°
Tue
7/28
Partly Cloudy
8%
24°
37°
Wed
7/29
Thunderstorm
60%
24°
37°
Thu
7/30
Rain
82%
24°
36°
Fri
7/31
Drizzle
60%
24°
36°
Sat
8/1
Drizzle
60%
24°
36°
Sun
8/2
Rain
90%
24°
37°
Mon
8/3
Drizzle
60%
24°
36°
Tue
8/4
Drizzle
60%
24°
36°
64
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
64 AQI 15.9 µg/m³
O3
Ground-level ozone
28 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 64 Moderate 28 64
Thu 48 Good 29 48
Fri 49 Good 30 49
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 21, 21:00'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
SBCAPE4053 J/kg
MLCAPE3268 J/kg
MUCAPE4053 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-5.8
Kinematics
0–6 km Shear24 kt
0–1 km Shear12 kt
Eff. Shear37 kt
0–1 km SRH18
0–3 km SRH-33
Eff. SRH-33
Storm Motion355° @ 32 kt
0–1 km EHI0.5
Composite Parameters
Sig. Tornado0.3
STP (eff)0.0
Supercell0.0
K-Index39.2
Thermo & Levels
PWAT2.48 in
0–3 km LR6.9 °C/km
700–500 LR4.6 °C/km
Total Totals44.7
LCL932 hPa
LFC1007 hPa
EL120 hPa
Freezing Lvl18,114 ft