S
M
T
W
T
F
S
26
89°
78°
27
89°
79°
28
90°
78°
29
90°
79°
30
89°
78°
31
88°
79°
1
89°
80°
2
88°
80°
3
90°
79°
4
90°
77°
5
89°
78°
6
Hist. Avg.
89°
76°
7
Hist. Avg.
89°
76°
8
Hist. Avg.
89°
76°
9
Hist. Avg.
89°
76°
10
Hist. Avg.
89°
76°
11
Hist. Avg.
89°
76°
12
Hist. Avg.
89°
76°
13
Hist. Avg.
89°
76°
14
Hist. Avg.
89°
76°
15
Hist. Avg.
89°
76°
16
Hist. Avg.
89°
76°
17
Hist. Avg.
89°
76°
18
Hist. Avg.
89°
76°
19
Hist. Avg.
89°
76°
20
Hist. Avg.
89°
76°
21
Hist. Avg.
89°
76°
22
Hist. Avg.
89°
76°
23
Hist. Avg.
89°
76°
24
Hist. Avg.
89°
76°
25
Hist. Avg.
89°
76°
26
Hist. Avg.
89°
76°
27
Hist. Avg.
89°
76°
28
Hist. Avg.
89°
76°
29
Hist. Avg.
89°
76°
30
Hist. Avg.
89°
76°
31
Hist. Avg.
89°
76°
1
Hist. Avg.
89°
75°
2
Hist. Avg.
89°
75°
3
Hist. Avg.
89°
75°
4
Hist. Avg.
89°
75°
5
Hist. Avg.
89°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in St John
St John's August 2026 forecast shows daily high temperatures ranging from 88° to 90°, with overnight lows between 77° and 80°. The average high for August is 89° with an average low of 79°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in St John. See also: September | October | November.
