Today | Weather | Sunday, August 9, 2026

Weather in Knoxville, Tennessee

03:52 AM
Now
Cloudy Night
72° F
Feels Like 75°
Precipitation 33 %
Wind 4 mph
Humidity 95 %
Today
Sunny with a Chance of Thunderstorms
Day 90°
Night 72°
Precipitation 55 %
Wind 5 mph
UV Index (0 - 11+) 6

Knoxville Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Night

Day

90°

Night

66°

Wind

4 mph

Precipitation

5 %

Air Quality in Knoxville

NOW
24 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.78 µg/m³
PM10 15.35 µg/m³
O3 0.001 ppm
NO2 0.8 ppb
SO2 0 ppb
CO 0.08 ppm
NH3 8.76 µg/m³
NO 0.08 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.55.78 µg/m³
PM1015.35 µg/m³
O32.21 µg/m³
NO21.53 µg/m³
SO20.06 µg/m³
CO88.77 µg/m³
NH38.76 µg/m³
NO0.08 µg/m³