Today | Weather | Tuesday, April 7, 2026

Weather in Knoxville, Tennessee

09:47 AM
Now
Cloudy Weather
46° F
Feels Like 48°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 4
Humidity 63 %
Today
Cloudy Weather
Day 68°
Night 41°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Knoxville Weather Forecast Updated

55 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 7, 2025)
Rainy Weather

Day

55°

Night

39°

Wind

4 mph

UV Index

2

Precipitation

49 %

Air Quality in Knoxville

NOW
36 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.83 µg/m³
PM10 5.44 µg/m³
O3 0.039 ppm
NO2 1.1 ppb
SO2 0.4 ppb
CO 0.12 ppm
NH3 3.8 µg/m³
NO 0.48 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)
PM2.53.83 µg/m³
PM105.44 µg/m³
O376.12 µg/m³
NO22.13 µg/m³
SO21.15 µg/m³
CO140.41 µg/m³
NH33.8 µg/m³
NO0.48 µg/m³