Madison County, Illinois, United States

Last updated: 10:18 AM CDT · Refresh

30°C

Feels like 38°

Partly Cloudy

▲ 37° / ▼ 24°

Wind

4 mph SSW

Humidity

81%

Dew Point

26°

Pressure

29.37 inHg

Visibility

10 mi

UV Index

7.4

Cloud Cover

53%

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 partly cloudy at 30°C. Precipitation is likely — peak probability 59% around 8 PM. Atmospheric instability is elevated (CAPE up to 4251 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

30°

11 AM

31°

26%

12 PM

33°

35%

1 PM

35°

23%

2 PM

36°

26%

3 PM

37°

26%

4 PM

37°

31%

5 PM

37°

37%

6 PM

37°

37%

7 PM

35°

54%

8 PM

33°

59%

9 PM

29°

57%

10 PM

28°

45%

11 PM

28°

14%

12 AM

27°

10%

1 AM

26°

2 AM

26°

3 AM

26°

4 AM

26°

5 AM

24°

6 AM

24°

7 AM

25°

8 AM

26°

9 AM

29°

7-Day Forecast

Today

37° 24°

Partly Cloudy with a 54% chance of rain.

Mon

37° 24°

Mostly Clear with a 34% chance of rain.

Tue

34° 21°

Partly Cloudy.

Wed

30° 18°

Clear.

Thu

31° 18°

Clear with a 29% chance of rain.

Fri

27° 19°

Drizzle, 71% chance.

Sat

30° 18°

Drizzle, 53% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 30° Partly Cloudy 4% 4 mph SSW 81%

11 AM 31° Partly Cloudy 26% 4 mph SW 75%

12 PM 33° Partly Cloudy 35% 5 mph WSW 69%

1 PM 35° Partly Cloudy 23% 6 mph WSW 63%

2 PM 36° Partly Cloudy 26% 6 mph WSW 60%

3 PM 37° Mostly Clear 26% 6 mph W 57%

4 PM 37° Mostly Clear 31% 6 mph W 57%

5 PM 37° Mostly Clear 37% 5 mph W 61%

6 PM 37° Partly Cloudy 37% 3 mph WSW 66%

7 PM 35° Mostly Cloudy 54% 2 mph SW 71%

8 PM 33° Rain 59% 6 mph NW 74%

9 PM 29° Rain 57% 10 mph NNW 76%

10 PM 28° Mostly Cloudy 45% 10 mph NNE 78%

11 PM 28° Partly Cloudy 14% 7 mph NE 80%

12 AM 27° Partly Cloudy 10% 6 mph E 81%

1 AM 26° Partly Cloudy 3% 5 mph SE 82%

2 AM 26° Partly Cloudy 3% 5 mph SSE 84%

3 AM 26° Mostly Clear 3% 5 mph S 85%

4 AM 26° Mostly Clear 3% 5 mph S 86%

5 AM 24° Mostly Clear 3% 5 mph S 88%

6 AM 24° Mostly Clear 3% 5 mph S 89%

7 AM 25° Clear 3% 5 mph S 89%

8 AM 26° Clear 3% 6 mph S 85%

9 AM 29° Clear 3% 6 mph S 81%

15-Day Forecast

Today

7/26

Partly Cloudy

54%

24°

37°

Mon

7/27

Mostly Clear

34%

24°

37°

Tue

7/28

Partly Cloudy

14%

21°

34°

Wed

7/29

Clear

18°

30°

Thu

7/30

Clear

29%

18°

31°

Fri

7/31

Drizzle

71%

19°

27°

Sat

8/1

Drizzle

53%

18°

30°

Sun

8/2

Drizzle

42%

19°

30°

Mon

8/3

Drizzle

44%

19°

31°

Tue

8/4

Drizzle

51%

21°

33°

Wed

8/5

Drizzle

60%

21°

33°

Thu

8/6

Drizzle

60%

21°

32°

Fri

8/7

Drizzle

60%

20°

31°

Sat

8/8

Drizzle

60%

20°

32°

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, 14:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE4689 J/kg

MLCAPE4039 J/kg

MUCAPE4689 J/kg

SBCIN0 J/kg

MLCIN0 J/kg

Lifted Index-8.8

Kinematics

0–6 km Shear18 kt

0–1 km Shear9 kt

Eff. Shear26 kt

0–1 km SRH-25

0–3 km SRH-77

Eff. SRH-77

Storm Motion277° @ 19 kt

0–1 km EHI-0.7

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index39.2

Thermo & Levels

PWAT2.01 in

0–3 km LR5.9 °C/km

700–500 LR6.2 °C/km

Total Totals50.6

LCL944 hPa

LFC994 hPa

EL136 hPa

Freezing Lvl16,611 ft

Madison County, Illinois, United States

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