S
M
T
W
T
F
S
26
68°
55°
27
65°
55°
28
67°
56°
29
68°
56°
30
68°
55°
31
69°
55°
1
68°
54°
2
63°
52°
3
63°
53°
4
64°
54°
5
64°
54°
6
63°
53°
7
63°
54°
8
64°
53°
9
64°
54°
10
65°
51°
11
64°
52°
12
65°
50°
13
64°
50°
14
64°
49°
15
66°
54°
16
65°
55°
17
68°
54°
18
67°
53°
19
67°
49°
20
64°
53°
21
66°
54°
22
67°
53°
23
64°
52°
24
65°
50°
25
66°
49°
26
63°
49°
27
63°
48°
28
64°
51°
29
65°
53°
30
68°
48°
31
67°
49°
1
65°
52°
2
65°
50°
3
64°
52°
4
63°
52°
5
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Johnshaven
Johnshaven's August 2026 forecast shows daily high temperatures ranging from 63° to 69°, with overnight lows between 48° and 56°. The average high for August is 65° with an average low of 52°. 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 Johnshaven. See also: September | October | November.
