Knoxville weather live forecast

Today's maximum temperature in Knoxville is expected to be 30°C. Select a day from the live weather forecast for Knoxville, Tennessee, USA for more weather parameters.

Saturday
18th Apr
30

13

5

8
Sunday
19th Apr
18

8

11

8
Monday
20th Apr
21

6

11

7
Tuesday
21st Apr
25

5

11

7
Wednesday
22nd Apr
28

10

13

8

5-day weather forecast updated at 04:01 on Saturday 18th April 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 Saturday 18th April 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 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-west.

30
°C maximum temperature
13
°C minimum temperature
broken clouds
5
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from SW

Knoxville weather for Sunday 19th April 2026

Expect sunshine and showers in Knoxville, Tennessee with a maximum temperature of 18°C, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 5-10 mm of rainfall expected with 18% chance of some rain and a gentle breeze of 17 kph from the north.

18
°C maximum temperature
8
°C minimum temperature
sunshine and showers
11
hours of sunshine
8
UV index (Very High)
18
% chance of some rain
<10
mm of rainfall expected
18
°C wind chill
17
kph wind from N

Knoxville weather for Monday 20th April 2026

Expect scattered clouds in Knoxville, Tennessee with a maximum temperature of 21°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-west.

21
°C maximum temperature
6
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from NW

Knoxville weather for Tuesday 21st April 2026

Expect scattered clouds in Knoxville, Tennessee with a maximum temperature of 25°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

25
°C maximum temperature
5
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
25
°C wind chill
9
kph wind from SW

Knoxville weather for Wednesday 22nd April 2026

Expect clear skies in Knoxville, Tennessee with a maximum temperature of 28°C, low 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 gentle breeze of 15 kph from the south-west.