S
M
T
W
T
F
S
26
74°
59°
27
76°
61°
28
75°
57°
29
75°
58°
30
78°
61°
31
79°
60°
1
80°
53°
2
76°
53°
3
73°
54°
4
73°
54°
5
71°
53°
6
73°
53°
7
74°
52°
8
74°
56°
9
75°
59°
10
76°
59°
11
75°
60°
12
77°
59°
13
74°
59°
14
79°
57°
15
79°
52°
16
75°
57°
17
76°
51°
18
73°
51°
19
72°
50°
20
71°
51°
21
72°
54°
22
72°
53°
23
70°
51°
24
72°
57°
25
71°
54°
26
77°
58°
27
76°
57°
28
76°
56°
29
75°
57°
30
70°
51°
31
72°
49°
1
69°
49°
2
69°
48°
3
70°
55°
4
68°
50°
5
71°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Alstead
Alstead's August 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 48° and 61°. The average high for August is 74° with an average low of 55°. 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 Alstead. See also: September | October | November.
