S
M
T
W
T
F
S
28
83°
59°
29
90°
68°
30
92°
75°
1
95°
77°
2
94°
76°
3
91°
69°
4
86°
69°
5
80°
65°
6
85°
56°
7
86°
61°
8
88°
68°
9
85°
65°
10
82°
61°
11
83°
62°
12
87°
65°
13
86°
68°
14
85°
64°
15
85°
62°
16
86°
66°
17
85°
66°
18
87°
63°
19
88°
62°
20
79°
59°
21
78°
59°
22
78°
60°
23
80°
64°
24
80°
63°
25
83°
65°
26
83°
65°
27
79°
64°
28
86°
67°
29
86°
67°
30
85°
66°
31
84°
67°
1
85°
66°
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 88°, with overnight lows between 56° and 68°. The average high for July is 84° 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 July weather will actually feel in St. Johns. See also: August | September | October.
