Knoxville weather live forecast

Today's maximum temperature in Knoxville is expected to be 86°F. Select a day from the live weather forecast for Knoxville, Tennessee, USA for more weather parameters.

Wednesday
15th Apr
86

57

10

9
Thursday
16th Apr
82

61

5

8
Friday
17th Apr
86

61

9

7
Saturday
18th Apr
90

63

4

9
Sunday
19th Apr
73

48

8

9

5-day weather forecast updated at 04:01 on Wednesday 15th 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 Wednesday 15th April 2026

Expect scattered clouds in Knoxville, Tennessee with a maximum temperature of 86°F, 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 9 mph from the south-west.

86
°F maximum temperature
57
°F minimum temperature
scattered clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
9
mph wind from SW

Knoxville weather for Thursday 16th April 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a gentle breeze of 11 mph from the south-west.

82
°F maximum temperature
61
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
35
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
11
mph wind from SW

Knoxville weather for Friday 17th April 2026

Expect isolated thunderstorms in Knoxville, Tennessee with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 11% chance of some rain and a light breeze of 4 mph from the south-west.

86
°F maximum temperature
61
°F minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
11
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
4
mph wind from SW

Knoxville weather for Saturday 18th April 2026

Expect mostly cloudy with light rain in Knoxville, Tennessee with a maximum temperature of 90°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 30% chance of some rain and a gentle breeze of 11 mph from the south-west.

90
°F maximum temperature
63
°F minimum temperature
mostly cloudy with light rain
4
hours of sunshine
9
UV index (Very High)
30
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
11
mph wind from SW

Knoxville weather for Sunday 19th April 2026

Expect sunshine and showers in Knoxville, Tennessee with a maximum temperature of 73°F, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 61% chance of some rain and a gentle breeze of 9 mph from the north-west.