Beach Hazards Statement — Lake, IL, Northern Cook, IL, Central Cook, IL 7:00 PM Flood Watch 4:00 AM Flood Warning — Lake County, IL 10:00 PM Flood Warning — Lake County, IL, Kenosha County, WI 10:00 AM Flood Warning — Lake County, IL 1:00 PM

Lake County, Illinois, United States

Last updated: 8:32 PM CDT  ·  Refresh
14°C
Feels like 11°
Mostly Cloudy
▲ 17°  /  ▼ 13°
Wind
7 mph NE
Humidity
68%
Dew Point
9°
Pressure
29.49 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
70%
Sunrise
6:39 AM
Sunset
6:49 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lake County is currently mostly cloudy at 14°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:39AM · Sunset: 6:49PM.

Alerts

Beach Hazards Statement
Lake, IL, Northern Cook, IL, Central Cook, IL
Expires 7:00 PM
Flood Watch
Expires 4:00 AM
Flood Warning
Lake County, IL
Expires 10:00 PM
Flood Warning
Lake County, IL, Kenosha County, WI
Expires 10:00 AM
Flood Warning
Lake County, IL
Expires 1:00 PM
28 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
14°
7%
9 PM
14°
3%
10 PM
14°
4%
11 PM
14°
9%
12 AM
13°
9%
1 AM
13°
10%
2 AM
13°
21%
3 AM
13°
20%
4 AM
13°
46%
5 AM
13°
31%
6 AM
13°
20%
7 AM
14°
30%
8 AM
14°
22%
9 AM
16°
29%
10 AM
17°
29%
11 AM
17°
7%
12 PM
17°
7%
1 PM
18°
7%
2 PM
18°
7%
3 PM
18°
7%
4 PM
18°
7%
5 PM
17°
3%
6 PM
16°
3%
7 PM
16°
3%
7-Day Forecast
Tonight
17° 13°
Partly Cloudy.
Wed
18° 13°
Partly Cloudy with a 31% chance of rain.
Thu
18° 13°
Mostly Clear.
Fri
19° 13°
Clear.
Sat
19° 13°
Clear.
Sun
18° 13°
Clear.
Mon
19° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 14° Mostly Cloudy 7% 7 mph NE 68%
9 PM 14° Mostly Cloudy 3% 7 mph ENE 64%
10 PM 14° Mostly Cloudy 4% 8 mph ENE 66%
11 PM 14° Partly Cloudy 9% 8 mph ENE 70%
12 AM 13° Partly Cloudy 9% 7 mph ENE 75%
1 AM 13° Mostly Clear 10% 7 mph ENE 77%
2 AM 13° Partly Cloudy 21% 7 mph ENE 80%
3 AM 13° Mostly Cloudy 20% 7 mph ENE 82%
4 AM 13° Mostly Cloudy 46% 6 mph ENE 84%
5 AM 13° Mostly Cloudy 31% 6 mph NE 85%
6 AM 13° Partly Cloudy 20% 6 mph NE 86%
7 AM 14° Partly Cloudy 30% 7 mph NE 86%
8 AM 14° Partly Cloudy 22% 8 mph NE 85%
9 AM 16° Partly Cloudy 29% 9 mph ENE 82%
10 AM 17° Partly Cloudy 29% 10 mph ENE 80%
11 AM 17° Partly Cloudy 7% 11 mph ENE 78%
12 PM 17° Mostly Cloudy 7% 11 mph ENE 75%
1 PM 18° Partly Cloudy 7% 12 mph ENE 75%
2 PM 18° Partly Cloudy 7% 12 mph ENE 75%
3 PM 18° Partly Cloudy 7% 11 mph ENE 75%
4 PM 18° Mostly Cloudy 7% 11 mph ENE 76%
5 PM 17° Mostly Cloudy 3% 10 mph ENE 77%
6 PM 16° Mostly Cloudy 3% 10 mph ENE 78%
7 PM 16° Mostly Cloudy 3% 10 mph ENE 79%
15-Day Forecast
Today
9/22
Partly Cloudy
9%
13°
17°
Wed
9/23
Partly Cloudy
31%
13°
18°
Thu
9/24
Mostly Clear
3%
13°
18°
Fri
9/25
Clear
3%
13°
19°
Sat
9/26
Clear
9%
13°
19°
Sun
9/27
Clear
19%
13°
18°
Mon
9/28
Clear
8%
13°
19°
Tue
9/29
Drizzle
63%
13°
22°
Wed
9/30
Rain
69%
12°
22°
Thu
10/1
Rain
68%
9°
16°
Fri
10/2
Clear
60%
9°
18°
Sat
10/3
Drizzle
60%
13°
20°
Sun
10/4
Drizzle
60%
11°
18°
Mon
10/5
Drizzle
60%
11°
16°
Tue
10/6
Drizzle
60%
10°
17°
28
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
6 AQI 1.2 µg/m³
O3
Ground-level ozone
Dominant
28 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 28 Good 28 6
Thu 30 Good 30 12
Fri 31 Good 31 14
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Sep 22, 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
SBCAPE0 J/kg
MLCAPE8 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index8.8
Kinematics
0–6 km Shear4 kt
0–1 km Shear16 kt
Eff. Shear—
0–1 km SRH6
0–3 km SRH63
Eff. SRH—
Storm Motion340° @ 7 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-25.2
Thermo & Levels
PWAT0.62 in
0–3 km LR3.3 °C/km
700–500 LR7.5 °C/km
Total Totals34.7
LCL926 hPa
LFC—
EL—
Freezing Lvl11,857 ft