S
M
T
W
T
F
S
26
82°
46°
27
88°
47°
28
86°
55°
29
71°
64°
30
80°
62°
31
83°
57°
1
89°
60°
2
86°
70°
3
79°
63°
4
85°
57°
5
86°
56°
6
91°
67°
7
90°
69°
8
89°
69°
9
88°
64°
10
88°
67°
11
87°
62°
12
85°
62°
13
85°
64°
14
82°
57°
15
80°
57°
16
77°
57°
17
80°
58°
18
80°
59°
19
81°
59°
20
80°
60°
21
83°
59°
22
82°
59°
23
83°
58°
24
76°
59°
25
76°
60°
26
80°
62°
27
83°
62°
28
83°
59°
29
77°
56°
30
75°
54°
31
74°
53°
1
74°
53°
2
75°
57°
3
74°
58°
4
74°
59°
5
76°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Nashua
Nashua's August 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 53° and 67°. The average high for August is 80° with an average low of 59°. 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 Nashua. See also: September | October | November.
