Washington County, Iowa, United States

Last updated: 11:16 AM CDT · Refresh

20°C

Feels like 21°

Overcast

▲ 21° / ▼ 14°

Wind

8 mph NE

Humidity

93%

Dew Point

19°

Pressure

29.16 inHg

Visibility

8 mi

UV Index

2.9

Cloud Cover

94%

Sunrise

6:52 AM

Sunset

7:07 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Washington County is currently overcast at 20°C. Precipitation is likely — peak probability 67% around 10 PM. Sunrise: 6:52AM · Sunset: 7:07PM.

30 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

20°

52%

12 PM

18°

60%

1 PM

19°

52%

2 PM

18°

55%

3 PM

18°

54%

4 PM

17°

54%

5 PM

18°

49%

6 PM

18°

45%

7 PM

18°

53%

8 PM

18°

59%

9 PM

17°

63%

10 PM

17°

66%

11 PM

17°

49%

12 AM

16°

58%

1 AM

16°

58%

2 AM

16°

58%

3 AM

16°

47%

4 AM

16°

37%

5 AM

14°

42%

6 AM

16°

43%

7 AM

16°

43%

8 AM

15°

43%

9 AM

14°

48%

10 AM

14°

48%

7-Day Forecast

Today

21° 14°

Overcast with a 59% chance of rain.

Mon

18° 13°

Overcast with a 69% chance of rain.

Tue

16° 10°

Mostly Cloudy with a 53% chance of rain.

Wed

19° 8°

Mostly Cloudy.

Thu

21° 10°

Clear.

Fri

20° 13°

Clear.

Sat

21° 12°

Drizzle, 52% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 20° Overcast 52% 8 mph NE 93%

12 PM 18° Overcast 60% 12 mph NE 92%

1 PM 19° Overcast 52% 14 mph NE 91%

2 PM 18° Overcast 55% 13 mph NE 91%

3 PM 18° Overcast 54% 14 mph NE 92%

4 PM 17° Overcast 54% 14 mph NE 92%

5 PM 18° Overcast 49% 14 mph NE 92%

6 PM 18° Overcast 45% 14 mph NE 92%

7 PM 18° Overcast 53% 14 mph ENE 92%

8 PM 18° Overcast 59% 14 mph ENE 91%

9 PM 17° Overcast 63% 14 mph ENE 91%

10 PM 17° Overcast 66% 14 mph ENE 91%

11 PM 17° Overcast 49% 14 mph ENE 91%

12 AM 16° Overcast 58% 14 mph ENE 91%

1 AM 16° Overcast 58% 14 mph ENE 91%

2 AM 16° Overcast 58% 13 mph ENE 90%

3 AM 16° Overcast 47% 12 mph NE 90%

4 AM 16° Overcast 37% 12 mph NE 90%

5 AM 14° Overcast 42% 12 mph ENE 90%

6 AM 16° Overcast 43% 12 mph ENE 89%

7 AM 16° Overcast 43% 12 mph ENE 89%

8 AM 15° Overcast 43% 12 mph ENE 90%

9 AM 14° Overcast 48% 12 mph ENE 90%

10 AM 14° Overcast 48% 12 mph ENE 90%

15-Day Forecast

Today

9/20

Overcast

59%

14°

21°

Mon

9/21

Overcast

69%

13°

18°

Tue

9/22

Mostly Cloudy

53%

10°

16°

Wed

9/23

Mostly Cloudy

8°

19°

Thu

9/24

Clear

10°

21°

Fri

9/25

Clear

17%

13°

20°

Sat

9/26

Drizzle

52%

12°

21°

Sun

9/27

Drizzle

43%

11°

23°

Mon

9/28

Drizzle

44%

13°

24°

Tue

9/29

Drizzle

51%

13°

22°

Wed

9/30

Drizzle

60%

13°

22°

Thu

10/1

Drizzle

60%

13°

22°

Fri

10/2

Drizzle

60%

12°

21°

Sat

10/3

Drizzle

60%

11°

21°

Sun

10/4

Drizzle

60%

10°

20°

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

14 AQI 2.6 µg/m³

O₃

Ground-level ozone

Dominant

30 AQI 32 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Mon 30 Good 30 14

Tue 19 Good 19 9

Wed 16 Good 16 9

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 Sep 20, 15:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE25 J/kg

MLCAPE12 J/kg

MUCAPE9 J/kg

SBCIN-0 J/kg

MLCIN0 J/kg

Lifted Index1.0

Kinematics

0–6 km Shear21 kt

0–1 km Shear4 kt

Eff. Shear—

0–1 km SRH8

0–3 km SRH59

Eff. SRH—

Storm Motion337° @ 18 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index31.7

Thermo & Levels

PWAT1.81 in

0–3 km LR4.5 °C/km

700–500 LR5.6 °C/km

Total Totals41.9

LCL973 hPa

LFC973 hPa

EL565 hPa

Freezing Lvl13,235 ft

Washington County, Iowa, United States

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