Madison County, Illinois, United States

Last updated: 8:56 AM CDT · Refresh

27°C

Feels like 31°

Mostly Cloudy

▲ 36° / ▼ 23°

Wind

4 mph SSW

Humidity

90%

Dew Point

25°

Pressure

29.38 inHg

Visibility

7 mi

UV Index

5.3

Cloud Cover

66%

Sunrise

5:55 AM

Sunset

8:16 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Madison County is currently mostly cloudy at 27°C. Precipitation is likely — peak probability 76% around 7 PM. Atmospheric instability is elevated (CAPE up to 4452 J/kg) — isolated convective development possible. Sunrise: 5:55AM · Sunset: 8:16PM.

58 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

27°

26%

9 AM

29°

35%

10 AM

31°

27%

11 AM

32°

33%

12 PM

33°

31%

1 PM

35°

44%

2 PM

36°

48%

3 PM

36°

42%

4 PM

34°

55%

5 PM

34°

55%

6 PM

32°

58%

7 PM

31°

75%

8 PM

28°

71%

9 PM

27°

47%

10 PM

26°

14%

11 PM

26°

14%

12 AM

26°

1 AM

25°

2 AM

25°

3 AM

25°

4 AM

25°

5 AM

24°

6 AM

24°

7 AM

25°

7-Day Forecast

Today

36° 23°

Partly Cloudy with a 71% chance of rain.

Mon

36° 23°

Partly Cloudy with a 36% chance of rain.

Tue

34° 21°

Mostly Clear.

Wed

31° 18°

Mostly Clear.

Thu

31° 18°

Clear.

Fri

27° 19°

Rain, 71% chance.

Sat

30° 18°

Drizzle, 53% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 27° Mostly Cloudy 26% 4 mph SSW 90%

9 AM 29° Mostly Clear 35% 5 mph SSW 83%

10 AM 31° Partly Cloudy 27% 5 mph SW 78%

11 AM 32° Partly Cloudy 33% 5 mph WSW 72%

12 PM 33° Mostly Cloudy 31% 5 mph WSW 67%

1 PM 35° Partly Cloudy 44% 6 mph W 65%

2 PM 36° Partly Cloudy 48% 7 mph W 64%

3 PM 36° Partly Cloudy 42% 8 mph WNW 64%

4 PM 34° Partly Cloudy 55% 5 mph W 67%

5 PM 34° Mostly Cloudy 55% 5 mph SSW 72%

6 PM 32° Mostly Cloudy 58% 7 mph SSE 79%

7 PM 31° Rain 75% 6 mph S 82%

8 PM 28° Drizzle 71% 8 mph SSW 81%

9 PM 27° Drizzle 47% 9 mph SSE 81%

10 PM 26° Partly Cloudy 14% 6 mph SSE 81%

11 PM 26° Mostly Clear 14% 5 mph SSW 81%

12 AM 26° Mostly Clear 3% 6 mph SSW 81%

1 AM 25° Mostly Clear 3% 5 mph S 85%

2 AM 25° Partly Cloudy 3% 5 mph S 89%

3 AM 25° Partly Cloudy 3% 5 mph S 92%

4 AM 25° Partly Cloudy 3% 6 mph SSE 92%

5 AM 24° Partly Cloudy 3% 6 mph SE 91%

6 AM 24° Partly Cloudy 3% 6 mph SE 90%

7 AM 25° Partly Cloudy 3% 6 mph SE 87%

15-Day Forecast

Today

7/26

Partly Cloudy

71%

23°

36°

Mon

7/27

Partly Cloudy

36%

23°

36°

Tue

7/28

Mostly Clear

14%

21°

34°

Wed

7/29

Mostly Clear

15%

18°

31°

Thu

7/30

Clear

16%

18°

31°

Fri

7/31

Rain

71%

19°

27°

Sat

8/1

Drizzle

53%

18°

30°

Sun

8/2

Drizzle

43%

19°

30°

Mon

8/3

Drizzle

44%

19°

32°

Tue

8/4

Drizzle

51%

21°

34°

Wed

8/5

Drizzle

60%

21°

33°

Thu

8/6

Drizzle

60%

20°

32°

Fri

8/7

Drizzle

60%

20°

31°

Sat

8/8

Drizzle

60%

20°

33°

Sun

8/9

Drizzle

60%

21°

33°

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

58 AQI 13.1 µg/m³

O₃

Ground-level ozone

49 AQI 53 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Mon 58 Moderate 49 58

Tue 58 Moderate 48 58

Wed 49 Good 44 49

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 26, 11:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE3002 J/kg

MLCAPE2619 J/kg

MUCAPE3002 J/kg

SBCIN-69 J/kg

MLCIN0 J/kg

Lifted Index-5.5

Kinematics

0–6 km Shear16 kt

0–1 km Shear16 kt

Eff. Shear26 kt

0–1 km SRH-27

0–3 km SRH-53

Eff. SRH-53

Storm Motion296° @ 22 kt

0–1 km EHI-0.5

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index31.0

Thermo & Levels

PWAT1.82 in

0–3 km LR5.0 °C/km

700–500 LR5.9 °C/km

Total Totals46.9

LCL968 hPa

LFC867 hPa

EL156 hPa

Freezing Lvl16,716 ft

Madison County, Illinois, United States

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