S
M
T
W
T
F
S
29
66°
49°
30
76°
61°
31
84°
56°
1
83°
59°
2
85°
58°
3
85°
62°
4
86°
65°
5
69°
49°
6
66°
46°
7
75°
43°
8
74°
47°
9
74°
48°
10
78°
47°
11
82°
47°
12
85°
49°
13
83°
56°
14
85°
57°
15
87°
58°
16
84°
58°
17
88°
61°
18
86°
59°
19
77°
48°
20
79°
52°
21
77°
53°
22
78°
60°
23
77°
58°
24
78°
59°
25
76°
59°
26
69°
43°
27
76°
55°
28
80°
58°
29
76°
58°
30
78°
59°
1
78°
59°
2
81°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Knoxville
Knoxville's April 2026 forecast shows daily high temperatures ranging from 69° to 88°, with overnight lows between 43° and 61°. The average high for April is 80° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Knoxville. See also: May | June | July.
