Washington County, East Tennessee, Tennessee, United States

Last updated: 8:31 PM CDT  ·  Refresh
18°C
Feels like 17°
Mostly Cloudy
▲ 19°  /  ▼ 12°
Wind
8 mph ENE
Humidity
80%
Dew Point
15°
Pressure
28.14 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
78%
Sunrise
7:32 AM
Sunset
7:00 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Washington County is currently mostly cloudy at 18°C. Precipitation is likely — peak probability 84% around 11 PM. Sunrise: 7:32AM · Sunset: 7:00PM.

Alerts

No active alerts for this location.
39 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
70%
10 PM
18°
72%
11 PM
18°
84%
12 AM
18°
81%
1 AM
18°
65%
2 AM
18°
66%
3 AM
18°
82%
4 AM
18°
58%
5 AM
18°
63%
6 AM
16°
56%
7 AM
15°
51%
8 AM
16°
33%
9 AM
16°
39%
10 AM
17°
55%
11 AM
16°
47%
12 PM
16°
52%
1 PM
14°
70%
2 PM
17°
69%
3 PM
17°
69%
4 PM
17°
65%
5 PM
17°
73%
6 PM
16°
73%
7 PM
16°
73%
8 PM
16°
73%
7-Day Forecast
Tonight
19° 12°
Mostly Cloudy with a 70% chance of rain.
Sun
20° 14°
Mostly Cloudy with a 82% chance of rain.
Mon
23° 12°
Overcast with a 20% chance of rain.
Tue
30° 11°
Mostly Clear.
Wed
32° 16°
Overcast.
Thu
31° 16°
Clear.
Fri
30° 11°
Clear with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 18° Mostly Cloudy 70% 8 mph ENE 80%
10 PM 18° Rain 72% 8 mph ENE 81%
11 PM 18° Rain 84% 7 mph ENE 81%
12 AM 18° Mostly Cloudy 81% 6 mph E 82%
1 AM 18° Partly Cloudy 65% 7 mph E 84%
2 AM 18° Partly Cloudy 66% 7 mph E 86%
3 AM 18° Partly Cloudy 82% 6 mph E 89%
4 AM 18° Mostly Cloudy 58% 5 mph E 91%
5 AM 18° Partly Cloudy 63% 4 mph E 92%
6 AM 16° Partly Cloudy 56% 5 mph ESE 91%
7 AM 15° Partly Cloudy 51% 4 mph ESE 90%
8 AM 16° Mostly Clear 33% 4 mph SE 90%
9 AM 16° Partly Cloudy 39% 4 mph SSW 88%
10 AM 17° Mostly Cloudy 55% 8 mph SW 86%
11 AM 16° Partly Cloudy 47% 9 mph WSW 84%
12 PM 16° Mostly Cloudy 52% 9 mph WSW 85%
1 PM 14° Overcast 70% 9 mph W 87%
2 PM 17° Overcast 69% 9 mph WSW 88%
3 PM 17° Overcast 69% 10 mph WSW 90%
4 PM 17° Overcast 65% 10 mph WSW 92%
5 PM 17° Overcast 73% 10 mph WSW 93%
6 PM 16° Overcast 73% 10 mph WSW 94%
7 PM 16° Overcast 73% 10 mph WSW 95%
8 PM 16° Overcast 73% 10 mph WSW 96%
15-Day Forecast
Today
10/10
Mostly Cloudy
70%
12°
19°
Sun
10/11
Mostly Cloudy
82%
14°
20°
Mon
10/12
Overcast
20%
12°
23°
Tue
10/13
Mostly Clear
16%
11°
30°
Wed
10/14
Overcast
16%
16°
32°
Thu
10/15
Clear
16%
16°
31°
Fri
10/16
Clear
28%
11°
30°
Sat
10/17
Snow
28%
-1°
19°
Sun
10/18
Clear
18%
-4°
14°
Mon
10/19
Clear
44%
-3°
19°
Tue
10/20
Clear
36%
-1°
22°
Wed
10/21
Drizzle
60%
4°
24°
Thu
10/22
Drizzle
60%
6°
23°
Fri
10/23
Drizzle
60%
4°
22°
Sat
10/24
Drizzle
60%
4°
22°
39
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
9 AQI 1.7 µg/m³
O3
Ground-level ozone
Dominant
39 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 39 Good 39 9
Mon 34 Good 34 7
Tue 37 Good 37 27
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 Sat Oct 10, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE8 J/kg
MUCAPE320 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index4.8
Kinematics
0–6 km Shear54 kt
0–1 km Shear44 kt
Eff. Shear27 kt
0–1 km SRH435
0–3 km SRH594
Eff. SRH67
Storm Motion189° @ 34 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.3
K-Index36.3
Thermo & Levels
PWAT1.85 in
0–3 km LR3.8 °C/km
700–500 LR5.9 °C/km
Total Totals43.8
LCL915 hPa
LFC—
EL—
Freezing Lvl13,547 ft