7-Day Forecast 35.8°N 83.98°W (Text-Only)
NWS Forecast for: Knoxville, McGhee Tyson Airport TN
Issued by: National Weather Service Morristown, TN
Last Update: 2:26 pm EDT Sep 8, 2026


This Afternoon: Mostly sunny and hot, with a high near 90. Calm wind.

Tonight: Partly cloudy, with a low around 67. South wind around 5 mph becoming calm.

Wednesday: Sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night: Mostly clear, with a low around 67. Calm wind becoming south around 5 mph.

Thursday: Sunny and hot, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the morning.

Thursday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

Friday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Calm wind becoming west around 5 mph.

Friday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Saturday: A slight chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Chance of precipitation is 60%.

Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

Sunday: A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.

Sunday Night: A chance of thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.

Monday: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 91.



Knoxville, McGhee Tyson Airport TN
 35.8°N 83.98°W (Elev. 955 ft)

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