S
M
T
W
T
F
S
28
83°
59°
29
90°
68°
30
92°
75°
1
97°
74°
2
95°
73°
3
88°
70°
4
85°
66°
5
86°
64°
6
86°
66°
7
87°
65°
8
89°
64°
9
89°
67°
10
84°
66°
11
85°
64°
12
86°
65°
13
84°
62°
14
78°
58°
15
78°
59°
16
79°
62°
17
80°
64°
18
83°
66°
19
79°
66°
20
82°
65°
21
83°
66°
22
84°
67°
23
86°
67°
24
87°
66°
25
86°
67°
26
87°
68°
27
86°
68°
28
87°
67°
29
86°
65°
30
83°
60°
31
78°
59°
1
78°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Johns
St. Johns's July 2026 forecast shows daily high temperatures ranging from 78° to 97°, with overnight lows between 58° and 74°. The average high for July is 85° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in St. Johns. See also: August | September | October.
