Washington County, Iowa, United States

Last updated: 8:46 AM CDT · Refresh

21°C

Feels like 22°

Overcast

▲ 21° / ▼ 13°

Wind

5 mph NNE

Humidity

95%

Dew Point

20°

Pressure

29.13 inHg

Visibility

5 mi

UV Index

2.4

Cloud Cover

85%

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 69% around 10 AM. Sunrise: 6:52AM · Sunset: 7:07PM.

30 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

21°

54%

9 AM

19°

68%

10 AM

18°

69%

11 AM

18°

64%

12 PM

17°

51%

1 PM

18°

43%

2 PM

18°

32%

3 PM

18°

32%

4 PM

18°

32%

5 PM

19°

32%

6 PM

18°

29%

7 PM

18°

38%

8 PM

17°

51%

9 PM

17°

50%

10 PM

17°

42%

11 PM

16°

42%

12 AM

16°

43%

1 AM

16°

43%

2 AM

16°

46%

3 AM

16°

46%

4 AM

16°

41%

5 AM

15°

45%

6 AM

14°

44%

7 AM

14°

45%

7-Day Forecast

Today

21° 13°

Overcast with a 64% chance of rain.

Mon

19° 13°

Overcast with a 57% chance of rain.

Tue

16° 9°

Partly Cloudy with a 57% chance of rain.

Wed

20° 8°

Partly Cloudy.

Thu

21° 9°

Clear.

Fri

20° 13°

Clear.

Sat

21° 12°

Drizzle, 52% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 21° Overcast 54% 5 mph NNE 95%

9 AM 19° Overcast 68% 5 mph NNE 93%

10 AM 18° Overcast 69% 8 mph NNE 94%

11 AM 18° Overcast 64% 11 mph NE 94%

12 PM 17° Overcast 51% 12 mph NE 94%

1 PM 18° Overcast 43% 13 mph NE 93%

2 PM 18° Mostly Cloudy 32% 14 mph NE 91%

3 PM 18° Mostly Cloudy 32% 14 mph NE 89%

4 PM 18° Mostly Cloudy 32% 13 mph NE 88%

5 PM 19° Mostly Cloudy 32% 13 mph NE 88%

6 PM 18° Overcast 29% 13 mph NE 89%

7 PM 18° Overcast 38% 13 mph NE 89%

8 PM 17° Overcast 51% 14 mph NE 89%

9 PM 17° Overcast 50% 15 mph ENE 89%

10 PM 17° Overcast 42% 14 mph ENE 88%

11 PM 16° Mostly Cloudy 42% 14 mph ENE 88%

12 AM 16° Mostly Cloudy 43% 13 mph ENE 88%

1 AM 16° Overcast 43% 13 mph NE 86%

2 AM 16° Overcast 46% 13 mph NE 86%

3 AM 16° Overcast 46% 12 mph NE 87%

4 AM 16° Overcast 41% 12 mph NE 88%

5 AM 15° Overcast 45% 12 mph NE 89%

6 AM 14° Overcast 44% 12 mph NE 90%

7 AM 14° Overcast 45% 12 mph NE 90%

15-Day Forecast

Today

9/20

Overcast

64%

13°

21°

Mon

9/21

Overcast

57%

13°

19°

Tue

9/22

Partly Cloudy

57%

9°

16°

Wed

9/23

Partly Cloudy

8°

20°

Thu

9/24

Clear

9°

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

Clear

44%

13°

24°

Tue

9/29

Drizzle

51%

13°

22°

Wed

9/30

Drizzle

60%

13°

22°

Thu

10/1

Drizzle

60%

12°

22°

Fri

10/2

Drizzle

60%

11°

21°

Sat

10/3

Clear

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

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE27 J/kg

MLCAPE11 J/kg

MUCAPE27 J/kg

SBCIN0 J/kg

MLCIN0 J/kg

Lifted Index0.4

Kinematics

0–6 km Shear21 kt

0–1 km Shear6 kt

Eff. Shear—

0–1 km SRH27

0–3 km SRH45

Eff. SRH—

Storm Motion332° @ 20 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index33.1

Thermo & Levels

PWAT1.92 in

0–3 km LR4.5 °C/km

700–500 LR5.5 °C/km

Total Totals42.5

LCL975 hPa

LFC986 hPa

EL581 hPa

Freezing Lvl13,753 ft

Washington County, Iowa, United States

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