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
82°
67°
16
87°
72°
17
87°
70°
18
85°
69°
19
87°
71°
20
89°
72°
21
88°
71°
22
89°
72°
23
86°
73°
24
87°
74°
25
86°
73°
26
85°
73°
27
86°
72°
28
88°
71°
29
89°
72°
30
89°
73°
31
90°
73°
1
88°
72°
2
89°
73°
3
89°
73°
4
88°
74°
5
86°
74°
6
86°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint Johns
Saint Johns's May 2026 forecast shows daily high temperatures ranging from 82° to 90°, with overnight lows between 67° and 74°. The average high for May is 87° with an average low of 72°. 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 Saint Johns. See also: June | July | August.
