S
M
T
W
T
F
S
26
88°
69°
27
87°
68°
28
86°
67°
29
84°
66°
30
84°
66°
31
83°
65°
1
82°
65°
2
84°
66°
3
84°
64°
4
83°
64°
5
83°
65°
6
84°
66°
7
83°
65°
8
77°
64°
9
76°
60°
10
78°
61°
11
80°
64°
12
83°
65°
13
81°
65°
14
82°
64°
15
75°
64°
16
75°
63°
17
76°
64°
18
81°
64°
19
82°
63°
20
82°
63°
21
72°
52°
22
74°
54°
23
74°
52°
24
73°
58°
25
79°
55°
26
74°
61°
27
73°
61°
28
78°
59°
29
82°
53°
30
76°
58°
31
75°
61°
1
73°
53°
2
80°
62°
3
82°
61°
4
84°
55°
5
79°
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 72° to 88°, with overnight lows between 52° and 69°. The average high for August is 80° with an average low of 62°. 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.
