S
M
T
W
T
F
S
26
78°
58°
27
80°
61°
28
80°
57°
29
81°
59°
30
83°
61°
31
81°
55°
1
81°
60°
2
83°
61°
3
82°
54°
4
84°
53°
5
79°
54°
6
80°
53°
7
83°
54°
8
79°
54°
9
79°
59°
10
84°
59°
11
81°
56°
12
84°
58°
13
84°
60°
14
83°
60°
15
81°
59°
16
84°
52°
17
84°
51°
18
77°
52°
19
77°
53°
20
76°
53°
21
78°
50°
22
77°
56°
23
78°
57°
24
82°
59°
25
84°
58°
26
84°
48°
27
82°
49°
28
74°
48°
29
75°
50°
30
76°
54°
31
77°
56°
1
82°
57°
2
82°
54°
3
81°
51°
4
81°
55°
5
80°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in New Boston
New Boston's August 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 48° and 61°. The average high for August is 81° 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 New Boston. See also: September | October | November.
