Heat Advisory — Iowa, IA, Johnson, IA, Cedar, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Louisa, IA, Jefferson, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Rock Island, IL, Henry, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO 7:00 PM

Washington County, Iowa, United States

Last updated: 12:06 AM CDT  ·  Refresh
26°C
Feels like 25°
Partly Cloudy
▲ 35°  /  ▼ 23°
Wind
12 mph S
Humidity
63%
Dew Point
20°
Pressure
29.10 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
33%
Sunrise
6:32 AM
Sunset
7:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Washington County is currently partly cloudy at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2340 J/kg) — isolated convective development possible. Sunrise: 6:32AM · Sunset: 7:41PM.

Alerts

Heat Advisory
Iowa, IA, Johnson, IA, Cedar, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Louisa, IA, Jefferson, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Rock Island, IL, Henry, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO
Expires 7:00 PM
59 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
18%
1 AM
26°
17%
2 AM
26°
17%
3 AM
25°
15%
4 AM
24°
14%
5 AM
24°
17%
6 AM
23°
26%
7 AM
23°
26%
8 AM
24°
15%
9 AM
26°
20%
10 AM
27°
19%
11 AM
28°
12%
12 PM
29°
9%
1 PM
31°
8%
2 PM
33°
11%
3 PM
33°
12%
4 PM
33°
12%
5 PM
32°
12%
6 PM
33°
18%
7 PM
31°
19%
8 PM
30°
19%
9 PM
29°
16%
10 PM
27°
16%
11 PM
26°
18%
7-Day Forecast
Today
35° 23°
Partly Cloudy with a 26% chance of rain.
Tue
38° 23°
Mostly Clear.
Wed
38° 23°
Clear.
Thu
38° 19°
Partly Cloudy with a 23% chance of rain.
Fri
39° 23°
Mostly Clear with a 22% chance of rain.
Sat
37° 22°
Mostly Clear.
Sun
34° 21°
Partly Cloudy with a 24% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 26° Partly Cloudy 18% 12 mph S 63%
1 AM 26° Partly Cloudy 17% 13 mph S 58%
2 AM 26° Mostly Cloudy 17% 12 mph S 62%
3 AM 25° Mostly Cloudy 15% 12 mph S 66%
4 AM 24° Partly Cloudy 14% 11 mph SSW 70%
5 AM 24° Partly Cloudy 17% 11 mph SSW 71%
6 AM 23° Partly Cloudy 26% 12 mph SSW 71%
7 AM 23° Mostly Clear 26% 12 mph SSW 70%
8 AM 24° Partly Cloudy 15% 13 mph SSW 66%
9 AM 26° Partly Cloudy 20% 14 mph SW 62%
10 AM 27° Partly Cloudy 19% 14 mph SW 58%
11 AM 28° Partly Cloudy 12% 14 mph SW 53%
12 PM 29° Partly Cloudy 9% 13 mph SW 48%
1 PM 31° Partly Cloudy 8% 11 mph SW 44%
2 PM 33° Partly Cloudy 11% 10 mph SW 42%
3 PM 33° Partly Cloudy 12% 10 mph SW 40%
4 PM 33° Mostly Cloudy 12% 9 mph SW 40%
5 PM 32° Mostly Cloudy 12% 7 mph SSW 47%
6 PM 33° Mostly Cloudy 18% 6 mph SSW 52%
7 PM 31° Mostly Cloudy 19% 5 mph S 57%
8 PM 30° Partly Cloudy 19% 5 mph S 62%
9 PM 29° Partly Cloudy 16% 5 mph S 67%
10 PM 27° Partly Cloudy 16% 6 mph S 71%
11 PM 26° Partly Cloudy 18% 6 mph SSW 70%
15-Day Forecast
Today
8/31
Partly Cloudy
26%
23°
35°
Tue
9/1
Mostly Clear
17%
23°
38°
Wed
9/2
Clear
7%
23°
38°
Thu
9/3
Partly Cloudy
23%
19°
38°
Fri
9/4
Mostly Clear
22%
23°
39°
Sat
9/5
Mostly Clear
18%
22°
37°
Sun
9/6
Partly Cloudy
24%
21°
34°
Mon
9/7
Rain
53%
19°
36°
Tue
9/8
Mostly Clear
35%
17°
29°
Wed
9/9
Clear
32%
16°
31°
Thu
9/10
Drizzle
60%
18°
31°
Fri
9/11
Drizzle
60%
17°
31°
Sat
9/12
Drizzle
60%
17°
31°
Sun
9/13
Drizzle
60%
17°
32°
Mon
9/14
Drizzle
60%
16°
29°
59
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
59 AQI 13.5 µg/m³
O3
Ground-level ozone
44 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 59 Moderate 44 59
Tue 61 Moderate 43 61
Wed 62 Moderate 44 62
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 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Mon Aug 31, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE76 J/kg
MLCAPE133 J/kg
MUCAPE900 J/kg
SBCIN-667 J/kg
MLCIN-471 J/kg
Lifted Index-1.3
Kinematics
0–6 km Shear31 kt
0–1 km Shear28 kt
Eff. Shear—
0–1 km SRH316
0–3 km SRH389
Eff. SRH—
Storm Motion285° @ 17 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)—
Supercell—
K-Index28.4
Thermo & Levels
PWAT1.70 in
0–3 km LR4.6 °C/km
700–500 LR7.0 °C/km
Total Totals45.2
LCL897 hPa
LFC567 hPa
EL404 hPa
Freezing Lvl15,574 ft