S
M
T
W
T
F
S
28
84°
67°
29
84°
67°
30
83°
66°
1
82°
66°
2
81°
64°
3
77°
60°
4
78°
61°
5
78°
61°
6
79°
66°
7
81°
67°
8
79°
67°
9
82°
68°
10
80°
59°
11
80°
62°
12
81°
65°
13
83°
66°
14
87°
59°
15
80°
62°
16
84°
66°
17
80°
64°
18
83°
59°
19
80°
58°
20
80°
59°
21
84°
66°
22
83°
62°
23
82°
58°
24
79°
59°
25
79°
63°
26
80°
66°
27
80°
66°
28
85°
59°
29
80°
58°
30
78°
57°
31
79°
57°
1
81°
58°
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 77° to 87°, with overnight lows between 57° and 68°. The average high for July is 81° 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.
