S
M
T
W
T
F
S
26
78°
61°
27
79°
62°
28
77°
60°
29
79°
58°
30
81°
62°
31
82°
61°
1
81°
54°
2
78°
54°
3
75°
55°
4
75°
55°
5
74°
54°
6
75°
54°
7
77°
55°
8
78°
58°
9
78°
60°
10
80°
60°
11
79°
59°
12
81°
61°
13
77°
60°
14
80°
59°
15
82°
53°
16
76°
58°
17
78°
52°
18
75°
52°
19
74°
51°
20
73°
53°
21
74°
55°
22
74°
54°
23
72°
52°
24
75°
58°
25
73°
55°
26
79°
59°
27
78°
58°
28
78°
54°
29
74°
57°
30
70°
53°
31
71°
50°
1
71°
49°
2
72°
49°
3
71°
56°
4
70°
52°
5
73°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gilmanton
Gilmanton's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 49° and 62°. The average high for August is 76° with an average low of 56°. 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 Gilmanton. See also: September | October | November.