Beach Hazards Statement — Lake, IL, Northern Cook, IL, Central Cook, IL, Lake, IN, Porter, IN 10:00 AM

Lake County, Illinois, United States

Last updated: 9:34 PM CDT  ·  Refresh
25°C
Feels like 27°
Mostly Clear
▲ 28°  /  ▼ 20°
Wind
10 mph SW
Humidity
88%
Dew Point
23°
Pressure
28.85 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
11%
Sunrise
5:39 AM
Sunset
8:16 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lake County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1807 J/kg) — isolated convective development possible. Sunrise: 5:39AM · Sunset: 8:16PM.

Alerts

Beach Hazards Statement
Lake, IL, Northern Cook, IL, Central Cook, IL, Lake, IN, Porter, IN
Expires 10:00 AM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
36%
10 PM
26°
23%
11 PM
24°
18%
12 AM
24°
16%
1 AM
23°
5%
2 AM
23°
3%
3 AM
22°
3%
4 AM
22°
3%
5 AM
21°
6%
6 AM
21°
6%
7 AM
21°
6%
8 AM
22°
3%
9 AM
23°
3%
10 AM
24°
3%
11 AM
26°
3%
12 PM
26°
3%
1 PM
26°
3%
2 PM
26°
3%
3 PM
26°
3%
4 PM
24°
3%
5 PM
24°
3%
6 PM
23°
3%
7 PM
23°
3%
8 PM
22°
3%
7-Day Forecast
Tonight
28° 20°
Mostly Clear with a 36% chance of rain.
Tue
26° 18°
Partly Cloudy.
Wed
28° 17°
Clear.
Thu
31° 20°
Mostly Clear with a 25% chance of rain.
Fri
26° 18°
Drizzle, 72% chance.
Sat
29° 18°
Drizzle, 69% chance.
Sun
27° 17°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 36% 10 mph SW 88%
10 PM 26° Clear 23% 8 mph WSW 90%
11 PM 24° Clear 18% 6 mph WNW 87%
12 AM 24° Mostly Clear 16% 7 mph NNW 86%
1 AM 23° Mostly Clear 5% 10 mph N 86%
2 AM 23° Partly Cloudy 3% 12 mph N 87%
3 AM 22° Mostly Cloudy 3% 13 mph N 88%
4 AM 22° Mostly Cloudy 3% 13 mph N 89%
5 AM 21° Mostly Cloudy 6% 12 mph N 89%
6 AM 21° Mostly Cloudy 6% 11 mph N 88%
7 AM 21° Mostly Cloudy 6% 12 mph N 85%
8 AM 22° Mostly Cloudy 3% 12 mph N 78%
9 AM 23° Partly Cloudy 3% 12 mph N 72%
10 AM 24° Partly Cloudy 3% 13 mph N 67%
11 AM 26° Mostly Clear 3% 14 mph NNE 64%
12 PM 26° Clear 3% 14 mph NNE 61%
1 PM 26° Clear 3% 14 mph NNE 56%
2 PM 26° Clear 3% 14 mph N 52%
3 PM 26° Clear 3% 14 mph N 47%
4 PM 24° Clear 3% 14 mph N 47%
5 PM 24° Clear 3% 13 mph NNE 50%
6 PM 23° Clear 3% 12 mph NNE 53%
7 PM 23° Clear 3% 11 mph NNE 57%
8 PM 22° Mostly Clear 3% 11 mph NNE 61%
15-Day Forecast
Today
7/27
Mostly Clear
36%
20°
28°
Tue
7/28
Partly Cloudy
16%
18°
26°
Wed
7/29
Clear
14%
17°
28°
Thu
7/30
Mostly Clear
25%
20°
31°
Fri
7/31
Drizzle
72%
18°
26°
Sat
8/1
Drizzle
69%
18°
29°
Sun
8/2
Clear
8%
17°
27°
Mon
8/3
Clear
8%
17°
28°
Tue
8/4
Drizzle
44%
19°
31°
Wed
8/5
Drizzle
44%
19°
32°
Thu
8/6
Rain
64%
18°
29°
Fri
8/7
Drizzle
60%
18°
29°
Sat
8/8
Drizzle
60%
18°
27°
Sun
8/9
Drizzle
60%
19°
27°
Mon
8/10
Drizzle
60%
19°
28°
52
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
52 AQI 9.7 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 44 52
Wed 29 Good 29 23
Thu 44 Good 44 39
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, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1170 J/kg
MLCAPE1744 J/kg
MUCAPE3521 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-4.0
Kinematics
0–6 km Shear53 kt
0–1 km Shear17 kt
Eff. Shear54 kt
0–1 km SRH108
0–3 km SRH55
Eff. SRH55
Storm Motion281° @ 36 kt
0–1 km EHI0.8
Composite Parameters
Sig. Tornado1.3
STP (eff)0.7
Supercell5.4
K-Index38.4
Thermo & Levels
PWAT1.93 in
0–3 km LR4.7 °C/km
700–500 LR6.2 °C/km
Total Totals52.3
LCL950 hPa
LFC977 hPa
EL228 hPa
Freezing Lvl15,879 ft