S
M
T
W
T
F
S
26
80°
62°
27
83°
65°
28
81°
65°
29
80°
64°
30
84°
60°
31
79°
58°
1
79°
58°
2
78°
60°
3
79°
63°
4
80°
64°
5
82°
64°
6
79°
63°
7
84°
63°
8
85°
64°
9
86°
63°
10
85°
58°
11
81°
57°
12
80°
60°
13
79°
57°
14
82°
57°
15
79°
56°
16
79°
59°
17
77°
60°
18
78°
56°
19
78°
56°
20
78°
57°
21
80°
57°
22
83°
62°
23
82°
61°
24
84°
61°
25
84°
54°
26
83°
54°
27
77°
52°
28
76°
54°
29
75°
56°
30
76°
59°
31
75°
60°
1
79°
56°
2
78°
56°
3
79°
53°
4
76°
52°
5
75°
52°
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 75° to 86°, with overnight lows between 52° and 65°. 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.
