Flood Warning — East Baton Rouge County, LA 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, Northern Tangipahoa, LA, Lower Plaquemines, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS 8:00 PM

Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, LM

Last updated: 7:57 PM CDT  ·  Refresh
32°C
Feels like 39°
Mostly Clear
▲ 35°  /  ▼ 24°
Wind
5 mph WSW
Humidity
61%
Dew Point
23°
Pressure
29.83 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
25%
Sunrise
6:20 AM
Sunset
8:02 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1801 J/kg) — isolated convective development possible. Sunrise: 6:20AM · Sunset: 8:02PM.

Alerts

Flood Warning
East Baton Rouge County, LA
Expires
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, Northern Tangipahoa, LA, Lower Plaquemines, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS
Expires 8:00 PM
30 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
11%
8 PM
32°
29%
9 PM
30°
29%
10 PM
29°
21%
11 PM
29°
21%
12 AM
28°
7%
1 AM
27°
3%
2 AM
27°
3%
3 AM
27°
3%
4 AM
26°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
26°
8%
8 AM
28°
17%
9 AM
30°
17%
10 AM
32°
19%
11 AM
33°
20%
12 PM
34°
20%
1 PM
35°
20%
2 PM
37°
21%
3 PM
37°
21%
4 PM
36°
19%
5 PM
36°
9%
6 PM
35°
3%
7-Day Forecast
Tonight
35° 24°
Mostly Clear with a 21% chance of rain.
Tue
37° 24°
Mostly Clear with a 20% chance of rain.
Wed
38° 26°
Mostly Clear.
Thu
37° 26°
Partly Cloudy with a 59% chance of rain.
Fri
37° 26°
Drizzle, 50% chance.
Sat
36° 24°
Thunderstorm, 82% chance.
Sun
34° 24°
Heavy Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 11% 5 mph WSW 61%
8 PM 32° Mostly Clear 29% 5 mph SW 69%
9 PM 30° Clear 29% 6 mph SW 75%
10 PM 29° Clear 21% 6 mph SW 79%
11 PM 29° Partly Cloudy 21% 5 mph WSW 82%
12 AM 28° Partly Cloudy 7% 6 mph WSW 85%
1 AM 27° Partly Cloudy 3% 6 mph WSW 85%
2 AM 27° Clear 3% 5 mph W 86%
3 AM 27° Clear 3% 5 mph W 87%
4 AM 26° Clear 3% 5 mph W 88%
5 AM 24° Clear 3% 5 mph W 88%
6 AM 24° Clear 3% 5 mph W 88%
7 AM 26° Clear 8% 7 mph W 82%
8 AM 28° Clear 17% 8 mph W 75%
9 AM 30° Clear 17% 8 mph WNW 68%
10 AM 32° Clear 19% 7 mph WNW 63%
11 AM 33° Mostly Clear 20% 6 mph W 58%
12 PM 34° Mostly Clear 20% 6 mph W 52%
1 PM 35° Mostly Clear 20% 6 mph W 51%
2 PM 37° Partly Cloudy 21% 6 mph W 50%
3 PM 37° Partly Cloudy 21% 6 mph W 50%
4 PM 36° Partly Cloudy 19% 6 mph W 51%
5 PM 36° Partly Cloudy 9% 6 mph W 53%
6 PM 35° Partly Cloudy 3% 6 mph W 55%
15-Day Forecast
Today
7/27
Mostly Clear
21%
24°
35°
Tue
7/28
Mostly Clear
20%
24°
37°
Wed
7/29
Mostly Clear
14%
26°
38°
Thu
7/30
Partly Cloudy
59%
26°
37°
Fri
7/31
Drizzle
50%
26°
37°
Sat
8/1
Thunderstorm
82%
24°
36°
Sun
8/2
Heavy Rain
90%
24°
34°
Mon
8/3
Rain
90%
24°
36°
Tue
8/4
Rain
68%
24°
36°
Wed
8/5
Rain
64%
24°
37°
Thu
8/6
Drizzle
60%
24°
39°
Fri
8/7
Drizzle
60%
23°
38°
Sat
8/8
Rain
90%
23°
35°
Sun
8/9
Drizzle
60%
23°
36°
Mon
8/10
Drizzle
60%
23°
36°
30
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
25 AQI 4.5 µg/m³
O3
Ground-level ozone
Dominant
30 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 30 Good 30 25
Wed 34 Good 30 34
Thu 46 Good 30 46
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 Jul 27, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1676 J/kg
MLCAPE1296 J/kg
MUCAPE1676 J/kg
SBCIN-52 J/kg
MLCIN0 J/kg
Lifted Index-3.1
Kinematics
0–6 km Shear16 kt
0–1 km Shear5 kt
Eff. Shear20 kt
0–1 km SRH17
0–3 km SRH-26
Eff. SRH-26
Storm Motion300° @ 19 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.9
Thermo & Levels
PWAT1.88 in
0–3 km LR7.0 °C/km
700–500 LR4.9 °C/km
Total Totals41.4
LCL882 hPa
LFC840 hPa
EL159 hPa
Freezing Lvl18,064 ft