Knox County, East Tennessee, Tennessee, United States

Last updated: 8:33 PM CDT  ·  Refresh
19°C
Feels like 18°
Mostly Cloudy
▲ 21°  /  ▼ 14°
Wind
10 mph ENE
Humidity
81%
Dew Point
16°
Pressure
28.87 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
63%
Sunrise
7:38 AM
Sunset
7:06 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Knox County is currently mostly cloudy at 19°C. Precipitation is likely — peak probability 88% around 11 PM. Sunrise: 7:38AM · Sunset: 7:06PM.

Alerts

No active alerts for this location.
39 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
59%
10 PM
19°
62%
11 PM
19°
87%
12 AM
18°
87%
1 AM
18°
87%
2 AM
18°
87%
3 AM
18°
62%
4 AM
17°
54%
5 AM
17°
68%
6 AM
16°
63%
7 AM
14°
46%
8 AM
14°
25%
9 AM
14°
35%
10 AM
14°
38%
11 AM
14°
57%
12 PM
14°
57%
1 PM
14°
46%
2 PM
17°
53%
3 PM
17°
52%
4 PM
18°
51%
5 PM
18°
41%
6 PM
18°
41%
7 PM
18°
26%
8 PM
18°
23%
7-Day Forecast
Tonight
21° 14°
Mostly Cloudy with a 59% chance of rain.
Sun
19° 14°
Rain, 87% chance.
Mon
26° 13°
Partly Cloudy.
Tue
31° 13°
Partly Cloudy.
Wed
32° 18°
Overcast.
Thu
31° 17°
Clear.
Fri
30° 11°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Cloudy 59% 10 mph ENE 81%
10 PM 19° Partly Cloudy 62% 9 mph ENE 82%
11 PM 19° Mostly Cloudy 87% 8 mph ENE 85%
12 AM 18° Rain 87% 7 mph ENE 89%
1 AM 18° Partly Cloudy 87% 6 mph ENE 93%
2 AM 18° Partly Cloudy 87% 4 mph ENE 95%
3 AM 18° Mostly Cloudy 62% 2 mph ENE 96%
4 AM 17° Overcast 54% 2 mph SSE 97%
5 AM 17° Overcast 68% 3 mph SW 97%
6 AM 16° Overcast 63% 6 mph SW 96%
7 AM 14° Mostly Cloudy 46% 7 mph SW 95%
8 AM 14° Mostly Cloudy 25% 7 mph SW 94%
9 AM 14° Mostly Cloudy 35% 8 mph SW 92%
10 AM 14° Overcast 38% 9 mph SW 92%
11 AM 14° Rain 57% 9 mph SW 92%
12 PM 14° Rain 57% 9 mph SW 93%
1 PM 14° Rain 46% 9 mph SW 92%
2 PM 17° Rain 53% 9 mph SW 92%
3 PM 17° Overcast 52% 9 mph SW 93%
4 PM 18° Overcast 51% 9 mph SW 93%
5 PM 18° Overcast 41% 9 mph SW 93%
6 PM 18° Overcast 41% 9 mph SW 94%
7 PM 18° Overcast 26% 9 mph WSW 95%
8 PM 18° Overcast 23% 9 mph WSW 93%
15-Day Forecast
Today
10/10
Mostly Cloudy
59%
14°
21°
Sun
10/11
Rain
87%
14°
19°
Mon
10/12
Partly Cloudy
17%
13°
26°
Tue
10/13
Partly Cloudy
6%
13°
31°
Wed
10/14
Overcast
16%
18°
32°
Thu
10/15
Clear
17%
17°
31°
Fri
10/16
Rain
28%
11°
30°
Sat
10/17
Clear
28%
1°
18°
Sun
10/18
Clear
18%
-1°
14°
Mon
10/19
Clear
19%
0°
18°
Tue
10/20
Clear
25%
3°
21°
Wed
10/21
Drizzle
60%
5°
23°
Thu
10/22
Clear
25%
7°
22°
Fri
10/23
Drizzle
60%
6°
21°
Sat
10/24
Drizzle
60%
6°
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
11 AQI 2.0 µg/m³
O3
Ground-level ozone
Dominant
39 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 39 Good 39 11
Mon 29 Good 29 6
Tue 41 Good 41 39
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
MLCAPE11 J/kg
MUCAPE96 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index4.4
Kinematics
0–6 km Shear66 kt
0–1 km Shear30 kt
Eff. Shear—
0–1 km SRH299
0–3 km SRH343
Eff. SRH—
Storm Motion196° @ 39 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index36.2
Thermo & Levels
PWAT1.49 in
0–3 km LR4.4 °C/km
700–500 LR5.4 °C/km
Total Totals46.1
LCL932 hPa
LFC—
EL—
Freezing Lvl13,819 ft