Beach Hazards Statement — Lake, IL 12:00 PM Flood Warning — Lake County, IL, Kenosha County, WI 4:00 AM Flood Warning — Lake County, IL 10:00 AM Flood Warning — Lake County, IL 1:00 PM

Lake County, Illinois, United States

Last updated: 5:36 PM CDT  ·  Refresh
17°C
Feels like 15°
Partly Cloudy
▲ 18°  /  ▼ 13°
Wind
10 mph ENE
Humidity
72%
Dew Point
13°
Pressure
29.54 inHg
Visibility
10 mi
UV Index
3.1
Cloud Cover
54%
Sunrise
6:40 AM
Sunset
6:47 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lake County is currently partly cloudy at 17°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:40AM · Sunset: 6:47PM.

Alerts

Beach Hazards Statement
Lake, IL
Expires 12:00 PM
Flood Warning
Lake County, IL, Kenosha County, WI
Expires 4:00 AM
Flood Warning
Lake County, IL
Expires 10:00 AM
Flood Warning
Lake County, IL
Expires 1:00 PM
32 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
17°
3%
6 PM
16°
23%
7 PM
16°
23%
8 PM
15°
23%
9 PM
15°
23%
10 PM
14°
23%
11 PM
14°
23%
12 AM
14°
16%
1 AM
14°
3%
2 AM
14°
3%
3 AM
14°
3%
4 AM
13°
3%
5 AM
13°
3%
6 AM
13°
3%
7 AM
13°
3%
8 AM
15°
3%
9 AM
17°
3%
10 AM
17°
3%
11 AM
18°
3%
12 PM
18°
3%
1 PM
18°
3%
2 PM
18°
3%
3 PM
18°
3%
4 PM
18°
3%
7-Day Forecast
Today
18° 13°
Partly Cloudy with a 23% chance of rain.
Thu
19° 13°
Mostly Clear.
Fri
18° 13°
Mostly Cloudy.
Sat
18° 10°
Mostly Clear.
Sun
23° 12°
Clear.
Mon
23° 12°
Rain, 71% chance.
Tue
23° 14°
Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 17° Partly Cloudy 3% 10 mph ENE 72%
6 PM 16° Partly Cloudy 23% 7 mph ENE 76%
7 PM 16° Mostly Clear 23% 6 mph ENE 78%
8 PM 15° Mostly Clear 23% 5 mph NE 80%
9 PM 15° Mostly Clear 23% 6 mph ENE 83%
10 PM 14° Mostly Clear 23% 6 mph ENE 84%
11 PM 14° Mostly Clear 23% 6 mph ENE 83%
12 AM 14° Mostly Clear 16% 6 mph ENE 82%
1 AM 14° Partly Cloudy 3% 6 mph ENE 82%
2 AM 14° Partly Cloudy 3% 6 mph ENE 83%
3 AM 14° Partly Cloudy 3% 6 mph ENE 85%
4 AM 13° Mostly Cloudy 3% 6 mph ENE 86%
5 AM 13° Partly Cloudy 3% 6 mph ENE 87%
6 AM 13° Partly Cloudy 3% 6 mph ENE 88%
7 AM 13° Clear 3% 5 mph ENE 89%
8 AM 15° Mostly Clear 3% 6 mph E 86%
9 AM 17° Partly Cloudy 3% 8 mph E 82%
10 AM 17° Partly Cloudy 3% 8 mph E 78%
11 AM 18° Mostly Clear 3% 9 mph E 75%
12 PM 18° Clear 3% 9 mph E 73%
1 PM 18° Clear 3% 9 mph E 73%
2 PM 18° Clear 3% 8 mph E 73%
3 PM 18° Clear 3% 8 mph E 74%
4 PM 18° Mostly Clear 3% 8 mph E 76%
15-Day Forecast
Today
9/23
Partly Cloudy
23%
13°
18°
Thu
9/24
Mostly Clear
3%
13°
19°
Fri
9/25
Mostly Cloudy
7%
13°
18°
Sat
9/26
Mostly Clear
17%
10°
18°
Sun
9/27
Clear
9%
12°
23°
Mon
9/28
Rain
71%
12°
23°
Tue
9/29
Rain
90%
14°
23°
Wed
9/30
Rain
81%
10°
22°
Thu
10/1
Drizzle
60%
9°
19°
Fri
10/2
Drizzle
60%
12°
19°
Sat
10/3
Drizzle
60%
12°
19°
Sun
10/4
Drizzle
90%
11°
19°
Mon
10/5
Drizzle
60%
11°
17°
Tue
10/6
Drizzle
60%
10°
17°
Wed
10/7
Clear
60%
10°
17°
32
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
21 AQI 3.7 µg/m³
O3
Ground-level ozone
Dominant
32 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 32 Good 32 21
Fri 36 Good 36 21
Sat 33 Good 33 15
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 Wed Sep 23, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE21 J/kg
MLCAPE3 J/kg
MUCAPE21 J/kg
SBCIN-10 J/kg
MLCIN-5 J/kg
Lifted Index5.0
Kinematics
0–6 km Shear14 kt
0–1 km Shear9 kt
Eff. Shear—
0–1 km SRH-12
0–3 km SRH32
Eff. SRH—
Storm Motion51° @ 23 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-1.5
Thermo & Levels
PWAT0.77 in
0–3 km LR4.3 °C/km
700–500 LR6.7 °C/km
Total Totals37.2
LCL934 hPa
LFC915 hPa
EL836 hPa
Freezing Lvl12,369 ft