S
M
T
W
T
F
S
26
79°
47°
27
81°
52°
28
73°
52°
29
67°
59°
30
76°
57°
31
76°
54°
1
80°
48°
2
74°
65°
3
73°
52°
4
79°
51°
5
81°
58°
6
80°
61°
7
76°
59°
8
77°
61°
9
76°
59°
10
74°
57°
11
72°
55°
12
68°
54°
13
70°
53°
14
69°
54°
15
67°
51°
16
67°
49°
17
73°
54°
18
68°
49°
19
67°
52°
20
69°
50°
21
67°
48°
22
68°
55°
23
74°
57°
24
72°
56°
25
68°
56°
26
72°
55°
27
71°
55°
28
67°
56°
29
74°
54°
30
72°
55°
31
73°
53°
1
68°
50°
2
65°
49°
3
64°
48°
4
65°
45°
5
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Keene
Keene's August 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 45° and 65°. The average high for August is 71° 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 Keene. See also: September | October | November.
