S
M
T
W
T
F
S
26
58°
38°
27
70°
35°
28
64°
36°
29
65°
48°
30
65°
48°
1
65°
42°
2
61°
45°
3
61°
44°
4
74°
45°
5
84°
57°
6
71°
59°
7
66°
50°
8
68°
43°
9
71°
49°
10
80°
46°
11
61°
46°
12
68°
40°
13
76°
49°
14
66°
53°
15
66°
49°
16
83°
45°
17
89°
62°
18
96°
60°
19
96°
69°
20
95°
59°
21
65°
54°
22
65°
52°
23
55°
53°
24
64°
58°
25
66°
58°
26
73°
59°
27
77°
58°
28
75°
57°
29
75°
57°
30
77°
58°
31
77°
58°
1
79°
59°
2
78°
58°
3
80°
61°
4
81°
62°
5
81°
63°
6
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Jacksonville
Jacksonville's May 2026 forecast shows daily high temperatures ranging from 55° to 95°, with overnight lows between 52° and 63°. The average high for May is 75° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Jacksonville. See also: June | July | August.
