S
M
T
W
T
F
S
26
73°
57°
27
72°
58°
28
77°
59°
29
76°
59°
30
76°
58°
31
72°
57°
1
76°
58°
2
74°
59°
3
73°
58°
4
72°
59°
5
76°
59°
6
75°
58°
7
76°
59°
8
76°
58°
9
71°
57°
10
70°
56°
11
71°
56°
12
70°
55°
13
70°
54°
14
71°
57°
15
71°
58°
16
74°
56°
17
71°
53°
18
70°
51°
19
69°
51°
20
71°
55°
21
70°
56°
22
73°
54°
23
70°
50°
24
69°
50°
25
69°
51°
26
68°
49°
27
69°
49°
28
68°
50°
29
72°
54°
30
73°
54°
31
73°
51°
1
72°
48°
2
67°
53°
3
67°
50°
4
72°
47°
5
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in River John
River John's August 2026 forecast shows daily high temperatures ranging from 65° to 77°, with overnight lows between 46° and 59°. The average high for August is 72° with an average low of 54°. 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 River John. See also: September | October | November.
