S
M
T
W
T
F
S
26
84°
67°
27
72°
66°
28
82°
66°
29
92°
68°
30
89°
72°
1
85°
70°
2
72°
62°
3
74°
58°
4
79°
61°
5
82°
64°
6
91°
68°
7
91°
71°
8
80°
69°
9
80°
68°
10
82°
72°
11
91°
72°
12
78°
70°
13
83°
69°
14
89°
68°
15
79°
67°
16
88°
71°
17
87°
74°
18
85°
70°
19
87°
73°
20
86°
72°
21
89°
74°
22
89°
76°
23
90°
75°
24
92°
74°
25
90°
77°
26
90°
76°
27
91°
76°
28
88°
74°
29
89°
73°
30
88°
73°
31
86°
74°
1
89°
73°
2
93°
76°
3
79°
71°
4
82°
70°
5
84°
70°
6
86°
70°
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 ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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.
