S
M
T
W
T
F
S
26
65°
53°
27
67°
51°
28
74°
43°
29
73°
54°
30
70°
54°
1
66°
53°
2
58°
50°
3
68°
43°
4
74°
46°
5
77°
53°
6
83°
56°
7
73°
54°
8
71°
51°
9
75°
55°
10
81°
62°
11
83°
56°
12
70°
48°
13
76°
53°
14
79°
57°
15
75°
49°
16
78°
55°
17
85°
59°
18
87°
67°
19
84°
62°
20
85°
63°
21
85°
67°
22
78°
70°
23
84°
69°
24
82°
72°
25
84°
72°
26
87°
73°
27
89°
73°
28
89°
73°
29
82°
64°
30
82°
58°
31
75°
62°
1
76°
64°
2
73°
53°
3
73°
55°
4
79°
61°
5
84°
64°
6
86°
67°
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 73° to 86°, with overnight lows between 53° and 67°. The average high for May is 79° with an average low of 61°. 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.
