Knoxville weather live forecast

Today's maximum temperature in Knoxville is expected to be 33°C. Select a day from the live weather forecast for Knoxville, Tennessee, USA for more weather parameters.

Tuesday
19th May
33

20

10

UV8
Wednesday
20th May
30

19

6

UV8
Thursday
21st May
29

19

5

UV8
Friday
22nd May
28

19

7

UV8
Saturday
23rd May
28

19

2

UV3

5-day weather forecast updated at 04:01 on Tuesday 19th May 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 Tuesday 19th May 2026

Expect scattered clouds in Knoxville, Tennessee with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

33
°C maximum temperature
20
°C minimum temperature
scattered clouds
10
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from SW

Knoxville weather for Wednesday 20th May 2026

Expect broken clouds in Knoxville, Tennessee with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

30
°C maximum temperature
19
°C minimum temperature
broken clouds
6
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from SW

Knoxville weather for Thursday 21st May 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 78% chance of some rain and a light breeze of 7 kph from the north-east.

29
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
UV8
UV index (Very High)
78
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from NE

Knoxville weather for Friday 22nd May 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 87% chance of some rain and a light breeze of 11 kph from the south.

28
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
UV8
UV index (Very High)
87
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
11
kph wind from S

Knoxville weather for Saturday 23rd May 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 82% chance of some rain and a light breeze of 12 kph from the south-west.