Washington County, Missouri, United States

Last updated: 1:02 PM CDT  ·  Refresh
28°C
Feels like 30°
Partly Cloudy
▲ 32°  /  ▼ 19°
Wind
3 mph N
Humidity
58%
Dew Point
20°
Pressure
28.96 inHg
Visibility
10 mi
UV Index
8.7
Cloud Cover
52%
Sunrise
5:46 AM
Sunset
8:29 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Washington County is currently partly cloudy at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1504 J/kg) — isolated convective development possible. Sunrise: 5:46AM · Sunset: 8:29PM.

Alerts

No active alerts for this location.
40 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
21%
2 PM
31°
24%
3 PM
31°
35%
4 PM
31°
35%
5 PM
30°
38%
6 PM
29°
39%
7 PM
28°
39%
8 PM
27°
28%
9 PM
25°
28%
10 PM
23°
24%
11 PM
22°
14%
12 AM
22°
14%
1 AM
21°
7%
2 AM
21°
19%
3 AM
21°
7%
4 AM
21°
6%
5 AM
21°
9%
6 AM
19°
5%
7 AM
19°
5%
8 AM
20°
5%
9 AM
21°
5%
10 AM
23°
5%
11 AM
24°
5%
12 PM
25°
5%
7-Day Forecast
Today
32° 19°
Partly Cloudy with a 39% chance of rain.
Mon
31° 19°
Partly Cloudy.
Tue
32° 18°
Drizzle, 52% chance.
Wed
33° 18°
Partly Cloudy with a 51% chance of rain.
Thu
36° 21°
Drizzle, 51% chance.
Fri
36° 19°
Drizzle, 64% chance.
Sat
34° 18°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 28° Partly Cloudy 21% 3 mph N 58%
2 PM 31° Partly Cloudy 24% 4 mph NNW 54%
3 PM 31° Mostly Cloudy 35% 4 mph NNW 54%
4 PM 31° Partly Cloudy 35% 4 mph NNW 55%
5 PM 30° Mostly Clear 38% 4 mph NNW 60%
6 PM 29° Mostly Clear 39% 4 mph N 64%
7 PM 28° Clear 39% 4 mph N 66%
8 PM 27° Mostly Clear 28% 3 mph N 73%
9 PM 25° Mostly Clear 28% 4 mph NNE 79%
10 PM 23° Partly Cloudy 24% 3 mph NE 86%
11 PM 22° Partly Cloudy 14% 2 mph NE 89%
12 AM 22° Partly Cloudy 14% 2 mph NNE 93%
1 AM 21° Partly Cloudy 7% 2 mph N 96%
2 AM 21° Partly Cloudy 19% 1 mph NNW 96%
3 AM 21° Partly Cloudy 7% 2 mph NNW 96%
4 AM 21° Fog 6% 2 mph NNW 97%
5 AM 21° Fog 9% 2 mph NNW 97%
6 AM 19° Fog 5% 2 mph NNW 97%
7 AM 19° Fog 5% 3 mph N 96%
8 AM 20° Fog 5% 3 mph N 92%
9 AM 21° Fog 5% 3 mph N 87%
10 AM 23° Fog 5% 3 mph N 82%
11 AM 24° Partly Cloudy 5% 4 mph N 77%
12 PM 25° Partly Cloudy 5% 4 mph N 73%
15-Day Forecast
Today
7/5
Partly Cloudy
39%
19°
32°
Mon
7/6
Partly Cloudy
7%
19°
31°
Tue
7/7
Drizzle
52%
18°
32°
Wed
7/8
Partly Cloudy
51%
18°
33°
Thu
7/9
Drizzle
51%
21°
36°
Fri
7/10
Drizzle
64%
19°
36°
Sat
7/11
Clear
17%
18°
34°
Sun
7/12
Drizzle
53%
19°
36°
Mon
7/13
Clear
43%
20°
37°
Tue
7/14
Drizzle
51%
21°
39°
Wed
7/15
Drizzle
60%
22°
36°
Thu
7/16
Drizzle
60%
21°
36°
Fri
7/17
Rain
90%
21°
35°
Sat
7/18
Drizzle
60%
21°
35°
Sun
7/19
Drizzle
60%
21°
35°
40
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
28 AQI 5.0 µg/m³
O3
Ground-level ozone
Dominant
40 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 40 Good 40 28
Tue 46 Good 46 39
Wed 49 Good 49 45
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 Sun Jul 5, 15:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1383 J/kg
MLCAPE452 J/kg
MUCAPE1383 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-5.6
Kinematics
0–6 km Shear13 kt
0–1 km Shear6 kt
Eff. Shear13 kt
0–1 km SRH-1
0–3 km SRH-44
Eff. SRH-44
Storm Motion214° @ 15 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.6
Thermo & Levels
PWAT1.80 in
0–3 km LR7.8 °C/km
700–500 LR5.6 °C/km
Total Totals48.6
LCL866 hPa
LFC981 hPa
EL218 hPa
Freezing Lvl12,674 ft