S
M
T
W
T
F
S
28
64°
55°
29
63°
55°
30
63°
56°
1
65°
56°
2
65°
55°
3
64°
57°
4
66°
57°
5
66°
55°
6
65°
56°
7
65°
56°
8
64°
57°
9
65°
56°
10
65°
57°
11
66°
57°
12
66°
56°
13
65°
58°
14
67°
58°
15
67°
57°
16
66°
57°
17
64°
56°
18
65°
55°
19
64°
56°
20
66°
57°
21
65°
56°
22
65°
58°
23
66°
57°
24
68°
58°
25
64°
57°
26
66°
57°
27
65°
55°
28
Hist. Avg.
64°
53°
29
Hist. Avg.
64°
53°
30
Hist. Avg.
64°
53°
31
Hist. Avg.
64°
53°
1
Hist. Avg.
64°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in St John's
St John's's July 2026 forecast shows daily high temperatures ranging from 63° to 68°, with overnight lows between 55° and 58°. The average high for July is 65° 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 St John's. See also: August | September | October.