S
M
T
W
T
F
S
26
76°
59°
27
77°
59°
28
76°
58°
29
76°
59°
30
75°
58°
31
70°
58°
1
69°
57°
2
69°
57°
3
68°
56°
4
69°
57°
5
70°
57°
6
69°
56°
7
69°
54°
8
70°
56°
9
70°
57°
10
69°
57°
11
69°
56°
12
68°
57°
13
70°
57°
14
72°
56°
15
69°
56°
16
67°
55°
17
68°
56°
18
68°
54°
19
69°
55°
20
69°
55°
21
69°
49°
22
69°
48°
23
68°
47°
24
67°
53°
25
69°
54°
26
72°
47°
27
68°
47°
28
68°
54°
29
66°
54°
30
77°
46°
31
67°
45°
1
67°
52°
2
72°
53°
3
66°
45°
4
66°
53°
5
68°
48°
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 66° to 77°, with overnight lows between 45° and 59°. The average high for August is 70° 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.
