National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

45°F

7°C

Humidity 77%
Wind Speed NE 8 mph
Barometer 30.44 in (1030.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Oct 2:53 am EDT
Extended Forecast for

Knoxville TN

  • Overnight

    Overnight: Mostly clear, with a low around 41. Northeast wind around 5 mph.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67. East wind around 5 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Northeast wind around 5 mph becoming calm.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71. Calm wind becoming northeast around 5 mph.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. Calm wind becoming northeast around 5 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Northeast wind around 5 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45. Calm wind becoming northeast around 5 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 41. Northeast wind around 5 mph.
Sunday
Sunny, with a high near 67. East wind around 5 mph.
Sunday Night
Mostly clear, with a low around 41. Northeast wind around 5 mph becoming calm.
Monday
Sunny, with a high near 71. Calm wind becoming northeast around 5 mph.
Monday Night
Mostly clear, with a low around 43. Calm wind becoming northeast around 5 mph.
Tuesday
Sunny, with a high near 74. Northeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 45. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Clear, with a low around 44.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 73.
Friday Night
Clear, with a low around 46.
Saturday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Knoxville TN
 35.96°N 83.97°W (Elev. 938 ft)
Last Update:
2:26 am EDT Oct 18, 2026
Forecast Valid:
3am EDT Oct 18, 2026-6pm EDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation