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Today | Weather | Sunday, December 14, 2025
Active Weather Warnings

Weather in Knoxville, Tennessee

12:03 PM
Now
Sunny Weather
28° F
Feels Like 23°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 3
Humidity 45 %
Today
Cloudy Weather
Day 28°
Night 14°
Precipitation 8 %
Wind 9 mph
UV Index (0 - 11+) 3

Knoxville Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 14, 2024)
Rainy Weather

Day

59°

Night

43°

Wind

4 mph

Precipitation

96 %

Air Quality in Knoxville

NOW
36 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.02 µg/m³
PM10 1.27 µg/m³
O3 0.039 ppm
NO2 0.9 ppb
SO2 0.2 ppb
CO 0.12 ppm
NH3 0.94 µg/m³
NO 0.67 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)
PM2.5 – 1.02 µg/m³
PM10 – 1.27 µg/m³
O3 – 75.82 µg/m³
NO2 – 1.74 µg/m³
SO2 – 0.61 µg/m³
CO – 133.65 µg/m³
NH3 – 0.94 µg/m³
NO – 0.67 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for Knoxville

Moderate Expected Likely

Cold Weather Advisory

Cold Weather Advisory issued December 13 at 12:24PM EST until December 15 at 10:00AM EST by NWS Morristown TN
Dec 14, 5:00 PM → Dec 15, 10:00 AM
WHAT: Very cold wind chills as low as zero expected.

WHERE: Portions of southwest North Carolina, east Tennessee, and
southwest Virginia.

WHEN: From 5 PM Sunday to 10 AM EST Monday.

IMPACTS: The cold wind chills as low as zero could result in
hypothermia if precautions are not taken.
+ Read More
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Updated: Dec 14, 10:27 AM Source: NWS Alert