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

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

65°F

18°C

Humidity 93%
Wind Speed Calm
Barometer 29.88 in (1010.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 11 Oct 3:53 am EDT
Extended Forecast for

4 Miles SSW Mascot TN

  • Overnight

    Overnight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East wind around 5 mph becoming west. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 4pm. Mostly cloudy, with a high near 70. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 59. West wind 5 to 10 mph.

    Low: 59 °F

    Chance
    Showers then
    Mostly Cloudy

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 80. Southwest wind around 5 mph becoming calm.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. Southwest wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. Southwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East wind around 5 mph becoming west. Chance of precipitation is 40%.
Sunday
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 70. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 59. West wind 5 to 10 mph.
Columbus Day
Partly sunny, with a high near 80. Southwest wind around 5 mph becoming calm.
Monday Night
Mostly clear, with a low around 58. Southwest wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 60. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 61.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 80.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Mascot TN
 36.02°N 83.8°W (Elev. 932 ft)
Last Update:
2:26 am EDT Oct 11, 2026
Forecast Valid:
4am EDT Oct 11, 2026-6pm EDT Oct 17, 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