S
M
T
W
T
F
S
28
74°
61°
29
65°
51°
30
65°
50°
1
66°
50°
2
66°
53°
3
67°
54°
4
66°
54°
5
66°
53°
6
68°
54°
7
68°
55°
8
69°
56°
9
73°
55°
10
69°
54°
11
69°
55°
12
67°
56°
13
72°
55°
14
69°
54°
15
69°
56°
16
70°
56°
17
69°
57°
18
69°
56°
19
70°
54°
20
71°
58°
21
71°
58°
22
72°
57°
23
69°
57°
24
72°
56°
25
74°
57°
26
74°
56°
27
74°
56°
28
71°
57°
29
74°
56°
30
75°
57°
31
77°
57°
1
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Saint John
Saint John's July 2026 forecast shows daily high temperatures ranging from 65° to 77°, with overnight lows between 50° and 61°. The average high for July is 70° with an average low of 55°. 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 Saint John. See also: August | September | October.
