Lee County, Illinois, United States

Last updated: 9:25 PM CDT · Refresh

22°C

Feels like 24°

Mostly Clear

▲ 26° / ▼ 17°

Wind

5 mph ENE

Humidity

94%

Dew Point

20°

Pressure

29.10 inHg

Visibility

10 mi

UV Index

0.0

Cloud Cover

22%

Sunrise

5:27 AM

Sunset

8:35 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Lee County is currently mostly clear at 22°C. Precipitation is likely — peak probability 54% around 1 PM. Atmospheric instability is elevated (CAPE up to 1296 J/kg) — isolated convective development possible. Sunrise: 5:27AM · Sunset: 8:35PM.

48 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

22°

12%

10 PM

20°

26%

11 PM

20°

39%

12 AM

20°

21%

1 AM

20°

2 AM

19°

20%

3 AM

19°

32%

4 AM

19°

20%

5 AM

17°

20%

6 AM

18°

11%

7 AM

18°

11%

8 AM

19°

13%

9 AM

21°

13%

10 AM

22°

34%

11 AM

22°

34%

12 PM

23°

45%

1 PM

23°

54%

2 PM

24°

54%

3 PM

24°

54%

4 PM

26°

34%

5 PM

26°

34%

6 PM

26°

24%

7 PM

26°

23%

8 PM

24°

23%

7-Day Forecast

Tonight

26° 17°

Mostly Clear.

Sun

26° 17°

Mostly Cloudy with a 54% chance of rain.

Mon

27° 16°

Clear.

Tue

27° 14°

Mostly Clear.

Wed

26° 17°

Rain, 72% chance.

Thu

22° 17°

Rain, 90% chance.

Fri

24° 16°

Rain, 64% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 22° Mostly Clear 12% 5 mph ENE 94%

10 PM 20° Mostly Clear 26% 5 mph ENE 96%

11 PM 20° Mostly Cloudy 39% 4 mph NE 96%

12 AM 20° Mostly Cloudy 21% 4 mph N 97%

1 AM 20° Mostly Cloudy 7% 5 mph N 97%

2 AM 19° Overcast 20% 4 mph N 97%

3 AM 19° Overcast 32% 4 mph N 96%

4 AM 19° Overcast 20% 5 mph N 96%

5 AM 17° Overcast 20% 5 mph N 95%

6 AM 18° Overcast 11% 6 mph N 94%

7 AM 18° Overcast 11% 6 mph N 92%

8 AM 19° Mostly Cloudy 13% 7 mph N 90%

9 AM 21° Mostly Cloudy 13% 8 mph N 88%

10 AM 22° Mostly Cloudy 34% 8 mph N 86%

11 AM 22° Mostly Cloudy 34% 8 mph NNE 86%

12 PM 23° Mostly Cloudy 45% 9 mph NNE 85%

1 PM 23° Mostly Cloudy 54% 9 mph NNE 83%

2 PM 24° Mostly Cloudy 54% 9 mph NNE 81%

3 PM 24° Mostly Cloudy 54% 9 mph NNE 79%

4 PM 26° Mostly Cloudy 34% 9 mph NNE 78%

5 PM 26° Mostly Cloudy 34% 9 mph NE 80%

6 PM 26° Mostly Cloudy 24% 9 mph NE 81%

7 PM 26° Mostly Cloudy 23% 9 mph NE 82%

8 PM 24° Partly Cloudy 23% 8 mph NE 85%

15-Day Forecast

Today

7/4

Mostly Clear

12%

17°

26°

Sun

7/5

Mostly Cloudy

54%

17°

26°

Mon

7/6

Clear

16°

27°

Tue

7/7

Mostly Clear

14°

27°

Wed

7/8

Rain

72%

17°

26°

Thu

7/9

Rain

90%

17°

22°

Fri

7/10

Rain

64%

16°

24°

Sat

7/11

Clear

31%

15°

23°

Sun

7/12

Drizzle

43%

12°

25°

Mon

7/13

Clear

19%

13°

24°

Tue

7/14

Clear

25%

18°

28°

Wed

7/15

Drizzle

60%

18°

26°

Thu

7/16

Drizzle

60%

18°

25°

Fri

7/17

Drizzle

60%

18°

25°

Sat

7/18

Drizzle

60%

18°

26°

Good

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

48 AQI 8.6 µg/m³

O₃

Ground-level ozone

35 AQI 38 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 48 Good 35 48

Mon 51 Moderate 35 51

Tue 53 Moderate 35 53

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 Sun Jul 5, 01:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE121 J/kg

MLCAPE98 J/kg

MUCAPE490 J/kg

SBCIN-100 J/kg

MLCIN0 J/kg

Lifted Index0.2

Kinematics

0–6 km Shear15 kt

0–1 km Shear11 kt

Eff. Shear21 kt

0–1 km SRH7

0–3 km SRH-14

Eff. SRH-14

Storm Motion181° @ 4 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index29.7

Thermo & Levels

PWAT1.59 in

0–3 km LR5.1 °C/km

700–500 LR4.8 °C/km

Total Totals40.5

LCL969 hPa

LFC744 hPa

EL325 hPa

Freezing Lvl13,793 ft

Lee County, Illinois, United States

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