Washington County, Illinois, United States

Last updated: 2:08 PM CDT · Refresh

12°C

Feels like 7°

Mostly Cloudy

▲ 12° / ▼ 1°

Wind

11 mph NNW

Humidity

59%

Dew Point

4°

Pressure

29.65 inHg

Visibility

10 mi

UV Index

4.5

Cloud Cover

65%

Sunrise

6:28 AM

Sunset

4:52 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Washington County is currently mostly cloudy at 11°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:28AM · Sunset: 4:52PM.

28 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

12°

3 PM

12°

4 PM

12°

5 PM

11°

6 PM

10°

7 PM

9°

8 PM

7°

9 PM

6°

10 PM

5°

11 PM

4°

12 AM

3°

1 AM

3°

2 AM

2°

3 AM

2°

4 AM

1°

5 AM

1°

6 AM

1°

7 AM

2°

8 AM

2°

9 AM

4°

10 AM

6°

11 AM

7°

12 PM

9°

1 PM

12°

7-Day Forecast

Today

12° 1°

Mostly Cloudy.

Sat

13° 1°

Partly Cloudy.

Sun

18° 3°

Mostly Clear.

Mon

21° 7°

Clear.

Tue

19° 8°

Clear.

Wed

17° 6°

Partly Cloudy with a 40% chance of rain.

Thu

13° 3°

Overcast with a 36% chance of rain.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 12° Mostly Cloudy 0% 11 mph NNW 59%

3 PM 12° Partly Cloudy 0% 11 mph NNW 57%

4 PM 12° Partly Cloudy 0% 11 mph NNW 57%

5 PM 11° Partly Cloudy 0% 10 mph NNW 60%

6 PM 10° Partly Cloudy 0% 8 mph N 64%

7 PM 9° Mostly Clear 0% 7 mph N 67%

8 PM 7° Clear 0% 6 mph NNW 72%

9 PM 6° Clear 0% 5 mph NNW 76%

10 PM 5° Clear 0% 5 mph NNW 79%

11 PM 4° Clear 0% 4 mph NNW 82%

12 AM 3° Clear 0% 4 mph NNW 84%

1 AM 3° Clear 0% 3 mph NNW 87%

2 AM 2° Clear 0% 3 mph NW 89%

3 AM 2° Clear 0% 3 mph NW 90%

4 AM 1° Clear 0% 3 mph NW 91%

5 AM 1° Clear 0% 3 mph NW 91%

6 AM 1° Clear 0% 3 mph NW 92%

7 AM 2° Clear 0% 3 mph NW 90%

8 AM 2° Mostly Clear 0% 3 mph NNW 86%

9 AM 4° Mostly Clear 0% 3 mph NNW 75%

10 AM 6° Partly Cloudy 0% 4 mph NNW 65%

11 AM 7° Partly Cloudy 0% 4 mph NNW 60%

12 PM 9° Partly Cloudy 0% 5 mph NNW 56%

1 PM 12° Mostly Cloudy 0% 5 mph NW 48%

15-Day Forecast

Today

11/6

Mostly Cloudy

1°

12°

Sat

11/7

Partly Cloudy

1°

13°

Sun

11/8

Mostly Clear

3°

18°

Mon

11/9

Clear

7°

21°

Tue

11/10

Clear

8°

19°

Wed

11/11

Partly Cloudy

40%

6°

17°

Thu

11/12

Overcast

36%

3°

13°

Fri

11/13

Partly Cloudy

14%

0°

9°

Sat

11/14

Partly Cloudy

24%

-2°

10°

Sun

11/15

Mostly Cloudy

50%

-2°

13°

Mon

11/16

Overcast

85%

2°

15°

Tue

11/17

Drizzle

84%

8°

15°

Wed

11/18

Drizzle

78%

8°

14°

Thu

11/19

Drizzle

73%

7°

14°

Fri

11/20

Drizzle

71%

6°

13°

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

19 AQI 3.5 µg/m³

O₃

Ground-level ozone

Dominant

28 AQI 31 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Sat 28 Good 28 19

Sun 38 Good 26 38

Mon 48 Good 28 48

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 Fri Nov 6, 18:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE68 J/kg

MLCAPE15 J/kg

MUCAPE0 J/kg

SBCIN0 J/kg

MLCIN-1 J/kg

Lifted Index13.0

Kinematics

0–6 km Shear17 kt

0–1 km Shear6 kt

Eff. Shear—

0–1 km SRH21

0–3 km SRH39

Eff. SRH—

Storm Motion349° @ 30 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index-22.7

Thermo & Levels

PWAT0.36 in

0–3 km LR2.9 °C/km

700–500 LR7.7 °C/km

Total Totals28.5

LCL899 hPa

LFC1004 hPa

EL850 hPa

Freezing Lvl3,530 ft

Washington County, Illinois, United States

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