S
M
T
W
T
F
S
26
83°
64°
27
80°
60°
28
81°
55°
29
90°
64°
30
84°
70°
1
70°
60°
2
68°
54°
3
75°
47°
4
80°
50°
5
85°
58°
6
89°
62°
7
80°
69°
8
75°
62°
9
68°
61°
10
85°
65°
11
88°
65°
12
76°
59°
13
80°
58°
14
82°
63°
15
82°
55°
16
90°
63°
17
91°
66°
18
89°
65°
19
91°
65°
20
91°
69°
21
92°
69°
22
91°
71°
23
84°
71°
24
91°
69°
25
88°
71°
26
90°
71°
27
88°
72°
28
85°
75°
29
88°
72°
30
86°
71°
31
85°
73°
1
87°
71°
2
82°
68°
3
81°
64°
4
84°
56°
5
88°
62°
6
88°
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 ° 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.
