Knoxville weather live forecast

Today's maximum temperature in Knoxville is expected to be 32°C. Select a day from the live weather forecast for Knoxville, Tennessee, USA for more weather parameters.

Sunday
17th May
32

16

10

8
Monday
18th May
32

18

10

9
Tuesday
19th May
32

19

6

10
Wednesday
20th May
30

20

6

8
Thursday
21st May
28

17

0

8

5-day weather forecast updated at 04:01 on Sunday 17th 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 Sunday 17th May 2026

Expect scattered clouds in Knoxville, Tennessee with a maximum temperature of 32°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 9 kph from the south-west.

32
°C maximum temperature
16
°C minimum temperature
scattered clouds
10
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from SW

Knoxville weather for Monday 18th May 2026

Expect scattered clouds in Knoxville, Tennessee with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.

32
°C maximum temperature
18
°C minimum temperature
scattered clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from SW

Knoxville weather for Tuesday 19th May 2026

Expect broken clouds in Knoxville, Tennessee with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

32
°C maximum temperature
19
°C minimum temperature
broken clouds
6
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
11
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 9 kph from the west.

30
°C maximum temperature
20
°C minimum temperature
broken clouds
6
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from W

Knoxville weather for Thursday 21st 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 no hours of bright sunshine. There are 2-5 mm of rainfall expected with 82% chance of some rain and a light breeze of 9 kph from the north-east.