Knoxville weather live forecast

Today's maximum temperature in Knoxville is expected to be 35°C. Select a day from the live weather forecast for Knoxville, Tennessee, USA for more weather parameters.

Sunday
16th Aug
35

23

13

8
Monday
17th Aug
34

23

9

8
Tuesday
18th Aug
32

23

6

8
Wednesday
19th Aug
33

20

12

9
Thursday
20th Aug
32

21

7

8

5-day weather forecast updated at 04:01 on Monday 17th August 2026 GMT

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The 5-day weather forecast for Tennessee (Knoxville) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Knoxville weather forecast by day

Below are the detailed weather forecasts for Knoxville for the next 5 days.

Knoxville weather for Sunday 16th August 2026

Expect clear skies in Knoxville, Tennessee with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

35
°C maximum temperature
23
°C minimum temperature
clear skies
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
9
kph wind from SW

Knoxville weather for Monday 17th August 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 5-10 mm of rainfall expected with 64% chance of some rain and a gentle breeze of 13 kph from the south-west.

34
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
8
UV index (Very High)
64
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
13
kph wind from SW

Knoxville weather for Tuesday 18th August 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 13% chance of some rain and a light breeze of 7 kph from the north.

32
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
13
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from N

Knoxville weather for Wednesday 19th August 2026

Expect scattered clouds in Knoxville, Tennessee with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the north-east.

33
°C maximum temperature
20
°C minimum temperature
scattered clouds
12
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
3
kph wind from NE

Knoxville weather for Thursday 20th August 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 67% chance of some rain and a light breeze of 7 kph from the west.