S
M
T
W
T
F
S
26
98°
75°
27
98°
76°
28
97°
76°
29
98°
75°
30
98°
76°
31
97°
76°
1
97°
75°
2
98°
76°
3
98°
76°
4
99°
77°
5
99°
77°
6
98°
76°
7
99°
77°
8
99°
77°
9
98°
76°
10
99°
77°
11
99°
77°
12
98°
76°
13
99°
76°
14
99°
75°
15
98°
77°
16
98°
77°
17
94°
71°
18
94°
72°
19
96°
72°
20
95°
71°
21
94°
73°
22
95°
72°
23
94°
71°
24
94°
70°
25
96°
74°
26
97°
68°
27
90°
68°
28
93°
66°
29
92°
67°
30
94°
67°
31
96°
69°
1
96°
73°
2
95°
70°
3
94°
69°
4
94°
71°
5
93°
72°
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 90° to 99°, with overnight lows between 66° and 77°. The average high for August is 96° with an average low of 73°. 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.
