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
83°
62°
7
85°
54°
8
88°
62°
9
85°
67°
10
83°
66°
11
85°
62°
12
86°
63°
13
93°
68°
14
100°
71°
15
93°
64°
16
88°
63°
17
88°
69°
18
88°
68°
19
87°
66°
20
81°
63°
21
81°
61°
22
82°
63°
23
80°
64°
24
84°
63°
25
83°
62°
26
88°
68°
27
83°
66°
28
80°
62°
29
78°
59°
30
78°
59°
31
81°
63°
1
84°
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 100°, with overnight lows between 59° and 71°. The average high for July is 85° 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.
