S
M
T
W
T
F
S
26
82°
67°
27
85°
68°
28
88°
68°
29
88°
67°
30
87°
69°
31
88°
68°
1
85°
68°
2
89°
69°
3
89°
69°
4
90°
68°
5
86°
68°
6
88°
67°
7
89°
67°
8
87°
62°
9
82°
61°
10
82°
61°
11
85°
68°
12
83°
67°
13
88°
68°
14
89°
68°
15
87°
67°
16
84°
63°
17
83°
59°
18
83°
58°
19
85°
63°
20
88°
65°
21
89°
66°
22
88°
65°
23
89°
65°
24
84°
63°
25
82°
64°
26
82°
61°
27
81°
62°
28
81°
64°
29
82°
61°
30
83°
61°
31
87°
64°
1
87°
64°
2
85°
63°
3
87°
56°
4
81°
55°
5
80°
58°
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 80° to 90°, with overnight lows between 55° and 69°. The average high for August is 85° with an average low of 64°. 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.
