Brown County, Illinois, United States

Last updated: 6:18 PM CDT · Refresh

25°C

Feels like 27°

Partly Cloudy

▲ 27° / ▼ 16°

Wind

3 mph SE

Humidity

66%

Dew Point

16°

Pressure

29.44 inHg

Visibility

10 mi

UV Index

4.8

Cloud Cover

47%

Sunrise

5:35 AM

Sunset

8:35 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Brown County is currently partly cloudy at 25°C. Precipitation is likely — peak probability 59% around 10 AM. Atmospheric instability is elevated (CAPE up to 1527 J/kg) — isolated convective development possible. Sunrise: 5:35AM · Sunset: 8:35PM.

39 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

25°

11%

7 PM

24°

29%

8 PM

23°

29%

9 PM

21°

21%

10 PM

21°

23%

11 PM

19°

23%

12 AM

18°

23%

1 AM

18°

2 AM

17°

3 AM

17°

4 AM

18°

16%

5 AM

16°

17%

6 AM

17°

17%

7 AM

17°

22%

8 AM

19°

29%

9 AM

21°

46%

10 AM

21°

59%

11 AM

22°

54%

12 PM

23°

56%

1 PM

27°

54%

2 PM

27°

57%

3 PM

27°

53%

4 PM

27°

38%

5 PM

23°

39%

7-Day Forecast

Tonight

27° 16°

Partly Cloudy with a 21% chance of rain.

Wed

29° 16°

Drizzle, 56% chance.

Thu

28° 18°

Heavy Rain, 75% chance.

Fri

24° 17°

Rain, 90% chance.

Sat

31° 20°

Thunderstorm, 69% chance.

Sun

33° 22°

Drizzle, 70% chance.

Mon

33° 22°

Clear.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 25° Partly Cloudy 11% 3 mph SE 66%

7 PM 24° Overcast 29% 4 mph SE 70%

8 PM 23° Rain 29% 4 mph SE 74%

9 PM 21° Rain 21% 4 mph SE 78%

10 PM 21° Rain 23% 5 mph SE 80%

11 PM 19° Rain 23% 5 mph SSE 82%

12 AM 18° Rain 23% 5 mph SSE 83%

1 AM 18° Mostly Clear 4% 5 mph SSE 84%

2 AM 17° Partly Cloudy 4% 5 mph SSE 83%

3 AM 17° Partly Cloudy 8% 5 mph SSE 82%

4 AM 18° Partly Cloudy 16% 6 mph SSE 82%

5 AM 16° Mostly Cloudy 17% 6 mph SSE 82%

6 AM 17° Mostly Cloudy 17% 6 mph SSE 82%

7 AM 17° Overcast 22% 7 mph S 81%

8 AM 19° Mostly Cloudy 29% 8 mph S 79%

9 AM 21° Drizzle 46% 9 mph S 76%

10 AM 21° Drizzle 59% 9 mph SSW 75%

11 AM 22° Drizzle 54% 9 mph SSW 76%

12 PM 23° Drizzle 56% 9 mph SSW 76%

1 PM 27° Drizzle 54% 9 mph SW 77%

2 PM 27° Drizzle 57% 8 mph SW 79%

3 PM 27° Drizzle 53% 8 mph SW 80%

4 PM 27° Drizzle 38% 8 mph WSW 81%

5 PM 23° Drizzle 39% 7 mph WSW 82%

15-Day Forecast

Today

6/23

Partly Cloudy

21%

16°

27°

Wed

6/24

Drizzle

56%

16°

29°

Thu

6/25

Heavy Rain

75%

18°

28°

Fri

6/26

Rain

90%

17°

24°

Sat

6/27

Thunderstorm

69%

20°

31°

Sun

6/28

Drizzle

70%

22°

33°

Mon

6/29

Clear

13%

22°

33°

Tue

6/30

Clear

21%

23°

34°

Wed

7/1

Thunderstorm

50%

23°

34°

Thu

7/2

Drizzle

54%

24°

33°

Fri

7/3

Rain

67%

24°

33°

Sat

7/4

Thunderstorm

71%

22°

33°

Sun

7/5

Thunderstorm

66%

21°

33°

Mon

7/6

Thunderstorm

66%

20°

33°

Tue

7/7

Thunderstorm

66%

20°

33°

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

25 AQI 4.5 µg/m³

O₃

Ground-level ozone

Dominant

39 AQI 42 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Wed 39 Good 39 25

Thu 39 Good 39 32

Fri 33 Good 33 13

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 Jun 23, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE67 J/kg

MLCAPE4 J/kg

MUCAPE67 J/kg

SBCIN-19 J/kg

MLCIN0 J/kg

Lifted Index0.1

Kinematics

0–6 km Shear36 kt

0–1 km Shear1 kt

Eff. Shear—

0–1 km SRH0

0–3 km SRH-109

Eff. SRH—

Storm Motion256° @ 23 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index17.7

Thermo & Levels

PWAT1.23 in

0–3 km LR6.3 °C/km

700–500 LR5.9 °C/km

Total Totals41.8

LCL878 hPa

LFC864 hPa

EL331 hPa

Freezing Lvl13,524 ft

Brown County, Illinois, United States

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