S
M
T
W
T
F
S
26
83°
62°
27
83°
63°
28
82°
64°
29
79°
64°
30
77°
63°
31
82°
64°
1
81°
64°
2
82°
62°
3
85°
63°
4
85°
63°
5
83°
62°
6
82°
61°
7
77°
62°
8
79°
58°
9
77°
57°
10
78°
56°
11
77°
61°
12
81°
62°
13
83°
62°
14
82°
55°
15
77°
54°
16
76°
55°
17
79°
60°
18
75°
55°
19
77°
54°
20
77°
54°
21
78°
55°
22
80°
59°
23
81°
55°
24
81°
53°
25
78°
53°
26
80°
58°
27
77°
56°
28
74°
55°
29
80°
60°
30
80°
56°
31
79°
50°
1
76°
49°
2
72°
51°
3
72°
50°
4
73°
50°
5
71°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Monadnock State Park
Monadnock State Park's August 2026 forecast shows daily high temperatures ranging from 71° to 85°, with overnight lows between 49° and 64°. The average high for August is 79° with an average low of 58°. 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 Monadnock State Park. See also: September | October | November.
