S
M
T
W
T
F
S
26
83°
61°
27
77°
59°
28
68°
52°
29
84°
61°
30
77°
61°
1
68°
56°
2
70°
50°
3
73°
42°
4
81°
45°
5
82°
52°
6
87°
64°
7
77°
61°
8
74°
55°
9
73°
58°
10
84°
59°
11
83°
58°
12
72°
56°
13
82°
53°
14
79°
58°
15
80°
47°
16
87°
49°
17
91°
64°
18
90°
62°
19
89°
63°
20
93°
67°
21
91°
67°
22
90°
69°
23
84°
68°
24
86°
69°
25
89°
68°
26
86°
67°
27
83°
68°
28
86°
70°
29
77°
66°
30
79°
63°
31
76°
61°
1
75°
62°
2
78°
62°
3
77°
61°
4
79°
62°
5
81°
63°
6
84°
66°
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 75° to 86°, with overnight lows between 61° and 70°. The average high for May is 80° with an average low of 64°. 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.
