Clark County, Illinois, United States

Last updated: 7:11 PM CDT · Refresh

28°C

Feels like 32°

Rain

▲ 32° / ▼ 20°

Wind

7 mph W

Humidity

82%

Dew Point

24°

Pressure

29.27 inHg

Visibility

10 mi

UV Index

2.2

Cloud Cover

71%

Sunrise

5:29 AM

Sunset

8:21 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Clark County is currently rain at 28°C. Precipitation is likely — peak probability 88% around 8 PM. Atmospheric instability is elevated (CAPE up to 2240 J/kg) — isolated convective development possible. Sunrise: 5:29AM · Sunset: 8:21PM.

57 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

28°

69%

8 PM

27°

87%

9 PM

25°

81%

10 PM

24°

47%

11 PM

24°

49%

12 AM

23°

50%

1 AM

22°

30%

2 AM

22°

31%

3 AM

22°

27%

4 AM

22°

23%

5 AM

20°

23%

6 AM

20°

7 AM

21°

19%

8 AM

21°

9 AM

23°

14%

10 AM

24°

23%

11 AM

24°

24%

12 PM

25°

24%

1 PM

26°

27%

2 PM

27°

44%

3 PM

27°

44%

4 PM

27°

34%

5 PM

28°

38%

6 PM

27°

38%

7-Day Forecast

Tonight

32° 20°

Rain, 69% chance.

Sun

28° 20°

Mostly Cloudy with a 38% chance of rain.

Mon

28° 18°

Mostly Cloudy with a 40% chance of rain.

Tue

29° 17°

Mostly Clear.

Wed

28° 19°

Mostly Cloudy.

Thu

28° 21°

Heavy Rain, 90% chance.

Fri

27° 19°

Rain, 82% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 28° Rain 69% 7 mph W 82%

8 PM 27° Rain 87% 6 mph WNW 89%

9 PM 25° Overcast 81% 4 mph WNW 92%

10 PM 24° Overcast 47% 4 mph SE 95%

11 PM 24° Overcast 49% 5 mph WSW 95%

12 AM 23° Mostly Cloudy 50% 5 mph WSW 96%

1 AM 22° Mostly Cloudy 30% 5 mph WSW 96%

2 AM 22° Mostly Cloudy 31% 4 mph W 96%

3 AM 22° Mostly Cloudy 27% 4 mph WNW 96%

4 AM 22° Mostly Cloudy 23% 4 mph NW 96%

5 AM 20° Partly Cloudy 23% 4 mph NW 96%

6 AM 20° Partly Cloudy 8% 5 mph NW 95%

7 AM 21° Fog 19% 5 mph NNW 94%

8 AM 21° Partly Cloudy 8% 5 mph NNW 91%

9 AM 23° Mostly Cloudy 14% 6 mph NNW 88%

10 AM 24° Mostly Cloudy 23% 6 mph NNW 85%

11 AM 24° Mostly Cloudy 24% 7 mph NNW 83%

12 PM 25° Mostly Cloudy 24% 7 mph NNW 81%

1 PM 26° Mostly Cloudy 27% 7 mph NNW 78%

2 PM 27° Mostly Cloudy 44% 7 mph NNW 76%

3 PM 27° Partly Cloudy 44% 7 mph NW 74%

4 PM 27° Partly Cloudy 34% 7 mph NW 73%

5 PM 28° Partly Cloudy 38% 7 mph NNW 76%

6 PM 27° Mostly Cloudy 38% 7 mph NNW 79%

15-Day Forecast

Today

7/4

Rain

69%

20°

32°

Sun

7/5

Mostly Cloudy

38%

20°

28°

Mon

7/6

Mostly Cloudy

40%

18°

28°

Tue

7/7

Mostly Clear

14%

17°

29°

Wed

7/8

Mostly Cloudy

16%

19°

28°

Thu

7/9

Heavy Rain

90%

21°

28°

Fri

7/10

Rain

82%

19°

27°

Sat

7/11

Clear

17%

18°

27°

Sun

7/12

Drizzle

44%

17°

26°

Mon

7/13

Mostly Clear

44%

17°

27°

Tue

7/14

Overcast

25%

17°

29°

Wed

7/15

Drizzle

60%

18°

28°

Thu

7/16

Drizzle

60%

17°

26°

Fri

7/17

Drizzle

60%

17°

26°

Sat

7/18

Drizzle

60%

17°

27°

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

PM_2.5

Fine particulate matter

Dominant

57 AQI 12.5 µg/m³

O₃

Ground-level ozone

30 AQI 33 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 57 Moderate 30 57

Mon 52 Moderate 33 52

Tue 56 Moderate 36 56

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 Sat Jul 4, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE2727 J/kg

MLCAPE2723 J/kg

MUCAPE2940 J/kg

SBCIN-40 J/kg

MLCIN0 J/kg

Lifted Index-6.4

Kinematics

0–6 km Shear14 kt

0–1 km Shear11 kt

Eff. Shear16 kt

0–1 km SRH-34

0–3 km SRH-36

Eff. SRH-36

Storm Motion188° @ 15 kt

0–1 km EHI-0.6

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index37.3

Thermo & Levels

PWAT2.18 in

0–3 km LR6.7 °C/km

700–500 LR5.4 °C/km

Total Totals48.4

LCL931 hPa

LFC883 hPa

EL148 hPa

Freezing Lvl14,705 ft

Clark County, Illinois, United States

Alerts