S
M
T
W
T
F
S
29
62°
30°
30
70°
55°
31
78°
60°
1
68°
49°
2
79°
51°
3
76°
62°
4
82°
60°
5
69°
41°
6
54°
35°
7
42°
27°
8
59°
26°
9
74°
41°
10
77°
51°
11
60°
39°
12
81°
63°
13
73°
60°
14
82°
61°
15
85°
63°
16
81°
58°
17
78°
58°
18
81°
56°
19
65°
37°
20
66°
44°
21
72°
48°
22
75°
55°
23
74°
55°
24
70°
42°
25
59°
37°
26
62°
39°
27
60°
38°
28
61°
40°
29
62°
39°
30
62°
38°
1
63°
39°
2
62°
41°
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 59° to 85°, with overnight lows between 37° and 63°. The average high for April is 70° with an average low of 48°. 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.
