Lake County, Illinois, United States

Last updated: 8:32 PM CDT · Refresh

57°F

Feels like 52°

Mostly Cloudy

▲ 63° / ▼ 55°

Wind

7 mph NE

Humidity

68%

Dew Point

48°

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 57°F. Dry conditions are expected through the next 24 hours. Sunrise: 6:39AM · Sunset: 6:49PM.

28 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

57°

9 PM

58°

10 PM

58°

11 PM

57°

12 AM

56°

1 AM

55°

10%

2 AM

55°

21%

3 AM

56°

20%

4 AM

56°

46%

5 AM

56°

31%

6 AM

56°

20%

7 AM

57°

30%

8 AM

58°

22%

9 AM

61°

29%

10 AM

62°

29%

11 AM

62°

12 PM

63°

1 PM

64°

2 PM

64°

3 PM

64°

4 PM

64°

5 PM

62°

6 PM

61°

7 PM

61°

7-Day Forecast

Tonight

63° 55°

Partly Cloudy.

Wed

64° 55°

Partly Cloudy with a 31% chance of rain.

Thu

64° 55°

Mostly Clear.

Fri

66° 55°

Clear.

Sat

66° 55°

Clear.

Sun

65° 56°

Clear.

Mon

66° 56°

Clear.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 57° Mostly Cloudy 7% 7 mph NE 68%

9 PM 58° Mostly Cloudy 3% 7 mph ENE 64%

10 PM 58° Mostly Cloudy 4% 8 mph ENE 66%

11 PM 57° Partly Cloudy 9% 8 mph ENE 70%

12 AM 56° Partly Cloudy 9% 7 mph ENE 75%

1 AM 55° Mostly Clear 10% 7 mph ENE 77%

2 AM 55° Partly Cloudy 21% 7 mph ENE 80%

3 AM 56° Mostly Cloudy 20% 7 mph ENE 82%

4 AM 56° Mostly Cloudy 46% 6 mph ENE 84%

5 AM 56° Mostly Cloudy 31% 6 mph NE 85%

6 AM 56° Partly Cloudy 20% 6 mph NE 86%

7 AM 57° Partly Cloudy 30% 7 mph NE 86%

8 AM 58° Partly Cloudy 22% 8 mph NE 85%

9 AM 61° Partly Cloudy 29% 9 mph ENE 82%

10 AM 62° Partly Cloudy 29% 10 mph ENE 80%

11 AM 62° Partly Cloudy 7% 11 mph ENE 78%

12 PM 63° Mostly Cloudy 7% 11 mph ENE 75%

1 PM 64° Partly Cloudy 7% 12 mph ENE 75%

2 PM 64° Partly Cloudy 7% 12 mph ENE 75%

3 PM 64° Partly Cloudy 7% 11 mph ENE 75%

4 PM 64° Mostly Cloudy 7% 11 mph ENE 76%

5 PM 62° Mostly Cloudy 3% 10 mph ENE 77%

6 PM 61° Mostly Cloudy 3% 10 mph ENE 78%

7 PM 61° Mostly Cloudy 3% 10 mph ENE 79%

15-Day Forecast

Today

9/22

Partly Cloudy

55°

63°

Wed

9/23

Partly Cloudy

31%

55°

64°

Thu

9/24

Mostly Clear

55°

64°

Fri

9/25

Clear

55°

66°

Sat

9/26

Clear

55°

66°

Sun

9/27

Clear

19%

56°

65°

Mon

9/28

Clear

56°

66°

Tue

9/29

Drizzle

63%

55°

71°

Wed

9/30

Rain

69%

54°

71°

Thu

10/1

Rain

68%

48°

61°

Fri

10/2

Clear

60%

48°

64°

Sat

10/3

Drizzle

60%

56°

68°

Sun

10/4

Drizzle

60%

52°

64°

Mon

10/5

Drizzle

60%

51°

61°

Tue

10/6

Drizzle

60%

50°

62°

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

PM_2.5

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

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

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

Lake County, Illinois, United States

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