S
M
T
W
T
F
S
28
76°
64°
29
77°
63°
30
79°
66°
1
80°
65°
2
78°
61°
3
78°
66°
4
78°
61°
5
77°
60°
6
77°
61°
7
78°
62°
8
78°
62°
9
79°
66°
10
81°
66°
11
79°
64°
12
80°
66°
13
82°
67°
14
79°
66°
15
79°
62°
16
80°
64°
17
81°
66°
18
83°
66°
19
84°
67°
20
82°
61°
21
85°
65°
22
85°
60°
23
86°
59°
24
80°
57°
25
78°
58°
26
78°
58°
27
79°
61°
28
79°
63°
29
80°
64°
30
81°
66°
31
84°
65°
1
87°
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 76° to 87°, with overnight lows between 57° and 67°. The average high for July is 80° with an average low of 63°. 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.
