S
M
T
W
T
F
S
29
70°
33°
30
73°
56°
31
81°
53°
1
82°
63°
2
86°
57°
3
83°
54°
4
82°
58°
5
66°
51°
6
66°
42°
7
67°
41°
8
72°
45°
9
74°
46°
10
77°
45°
11
82°
47°
12
85°
52°
13
81°
62°
14
84°
58°
15
84°
57°
16
85°
61°
17
86°
55°
18
86°
49°
19
66°
42°
20
70°
42°
21
78°
49°
22
79°
50°
23
81°
52°
24
86°
57°
25
79°
53°
26
75°
52°
27
70°
48°
28
69°
50°
29
68°
48°
30
70°
50°
1
69°
49°
2
69°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in South Knoxville
South Knoxville's April 2026 forecast shows daily high temperatures ranging from 66° to 86°, with overnight lows between 42° and 57°. The average high for April is 75° with an average low of 49°. 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 South Knoxville. See also: May | June | July.
