S
M
T
W
T
F
S
28
74°
50°
29
80°
48°
30
N/A
1
68°
56°
2
79°
58°
3
90°
62°
4
84°
58°
5
76°
54°
6
78°
53°
7
74°
52°
8
76°
53°
9
72°
54°
10
74°
55°
11
76°
56°
12
75°
54°
13
73°
56°
14
68°
55°
15
69°
54°
16
68°
53°
17
68°
56°
18
69°
56°
19
71°
55°
20
72°
57°
21
74°
58°
22
75°
58°
23
75°
57°
24
74°
58°
25
75°
58°
26
76°
59°
27
76°
59°
28
75°
58°
29
75°
59°
30
72°
58°
31
72°
57°
1
69°
56°
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 68° to 90°, with overnight lows between 52° and 62°. The average high for July is 74° with an average low of 56°. 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.
