Today | Weather | Wednesday, August 13, 2025
Knoxville, Tennessee. 07:36 PM
Now
Cloudy WeatherCloudy weather, overcast skies with no rain.
79° F
Feels Like 82°
Precipitation 49 %
Wind 6 mph
UV Index (0 - 11+) 0
Humidity 78 %
Today
Stormy WeatherStormy weather, thunderstorms.
Day 81°
Night 70°
Precipitation 100 %
Wind 5 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Knoxville Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (August 13, 2024)

Cloudy WeatherCloudy weather, overcast skies with clouds.

Day

88°

Night

64°

Wind

4 mph

UV Index

10

Precipitation

3

Air quality in Knoxville
NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.57 µg/m³
PM10 5.66 µg/m³
O₃ 45.51 ppb
NO₂ 3.13 ppb
SO₂ 0.72 ppb
CO 157.93 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors