S
M
T
W
T
F
S
29
37°
7°
30
56°
30°
31
36°
27°
1
34°
27°
2
40°
24°
3
39°
28°
4
39°
29°
5
38°
30°
6
39°
27°
7
39°
18°
8
41°
25°
9
53°
33°
10
59°
36°
11
46°
27°
12
53°
34°
13
57°
45°
14
51°
30°
15
46°
29°
16
47°
27°
17
50°
34°
18
54°
33°
19
53°
32°
20
55°
30°
21
56°
34°
22
53°
34°
23
54°
36°
24
48°
36°
25
53°
31°
26
48°
29°
27
50°
30°
28
50°
31°
29
51°
32°
30
52°
32°
1
53°
33°
2
52°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Jacksonville
Jacksonville's April 2026 forecast shows daily high temperatures ranging from 39° to 59°, with overnight lows between 18° and 45°. The average high for April is 51° with an average low of 32°. 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 Jacksonville. See also: May | June | July.