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Washington County, Iowa, United States

Last updated: 6:42 PM CDT  ·  Refresh
9°C
Feels like 6°
Partly Cloudy
▲ 11°  /  ▼ 1°
Wind
14 mph NNW
Humidity
69%
Dew Point
4°
Pressure
29.61 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
39%
Sunrise
7:18 AM
Sunset
6:24 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Washington County is currently partly cloudy at 9°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:18AM · Sunset: 6:24PM.

22 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
8%
7 PM
8°
8%
8 PM
7°
8%
9 PM
6°
3%
10 PM
6°
3%
11 PM
5°
3%
12 AM
4°
3%
1 AM
4°
3%
2 AM
3°
3%
3 AM
3°
3%
4 AM
3°
3%
5 AM
1°
3%
6 AM
1°
3%
7 AM
2°
3%
8 AM
3°
3%
9 AM
7°
3%
10 AM
8°
3%
11 AM
9°
3%
12 PM
11°
3%
1 PM
13°
3%
2 PM
13°
3%
3 PM
14°
3%
4 PM
13°
3%
5 PM
10°
3%
7-Day Forecast
Tonight
11° 1°
Partly Cloudy.
Sat
14° 1°
Clear.
Sun
19° 3°
Clear.
Mon
22° 5°
Clear.
Tue
23° 8°
Clear.
Wed
24° 11°
Clear.
Thu
26° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 9° Partly Cloudy 8% 14 mph NNW 69%
7 PM 8° Mostly Clear 8% 11 mph NNW 71%
8 PM 7° Clear 8% 10 mph NNW 74%
9 PM 6° Clear 3% 9 mph N 77%
10 PM 6° Clear 3% 8 mph N 80%
11 PM 5° Clear 3% 7 mph N 82%
12 AM 4° Clear 3% 6 mph N 84%
1 AM 4° Clear 3% 6 mph N 85%
2 AM 3° Clear 3% 5 mph N 85%
3 AM 3° Clear 3% 4 mph NNW 85%
4 AM 3° Clear 3% 4 mph NNW 85%
5 AM 1° Clear 3% 3 mph NW 85%
6 AM 1° Mostly Clear 3% 3 mph WNW 84%
7 AM 2° Mostly Clear 3% 2 mph WSW 80%
8 AM 3° Mostly Clear 3% 3 mph SSW 74%
9 AM 7° Clear 3% 5 mph SSW 65%
10 AM 8° Clear 3% 6 mph SSW 58%
11 AM 9° Clear 3% 6 mph SSW 52%
12 PM 11° Clear 3% 7 mph SSW 46%
1 PM 13° Clear 3% 8 mph SSW 43%
2 PM 13° Clear 3% 8 mph SSW 42%
3 PM 14° Clear 3% 8 mph SSW 42%
4 PM 13° Clear 3% 8 mph SSW 45%
5 PM 10° Clear 3% 8 mph SSW 50%
15-Day Forecast
Today
10/16
Partly Cloudy
8%
1°
11°
Sat
10/17
Clear
3%
1°
14°
Sun
10/18
Clear
3%
3°
19°
Mon
10/19
Clear
3%
5°
22°
Tue
10/20
Clear
3%
8°
23°
Wed
10/21
Clear
3%
11°
24°
Thu
10/22
Clear
3%
13°
26°
Fri
10/23
Clear
17%
13°
27°
Sat
10/24
Clear
44%
12°
27°
Sun
10/25
Clear
44%
8°
20°
Mon
10/26
Drizzle
50%
7°
19°
Tue
10/27
Clear
60%
7°
17°
Wed
10/28
Drizzle
60%
7°
18°
Thu
10/29
Drizzle
60%
8°
19°
Fri
10/30
Drizzle
60%
8°
18°
22
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
PM2.5
Fine particulate matter
17 AQI 3.1 µg/m³
O3
Ground-level ozone
Dominant
22 AQI 24 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 22 Good 22 17
Sun 26 Good 26 8
Mon 27 Good 27 20
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. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE1 J/kg
MUCAPE4 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index13.9
Kinematics
0–6 km Shear50 kt
0–1 km Shear18 kt
Eff. Shear—
0–1 km SRH111
0–3 km SRH110
Eff. SRH—
Storm Motion25° @ 39 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-6.1
Thermo & Levels
PWAT0.38 in
0–3 km LR5.4 °C/km
700–500 LR4.3 °C/km
Total Totals31.8
LCL929 hPa
LFC—
EL—
Freezing Lvl3,967 ft