S
M
T
W
T
F
S
27
70°
52°
28
75°
50°
29
75°
47°
30
74°
49°
1
72°
50°
2
73°
48°
3
73°
47°
4
70°
46°
5
69°
47°
6
66°
46°
7
66°
45°
8
62°
42°
9
60°
45°
10
67°
45°
11
69°
43°
12
68°
37°
13
60°
36°
14
58°
39°
15
62°
42°
16
64°
41°
17
66°
44°
18
64°
44°
19
66°
41°
20
66°
40°
21
62°
39°
22
60°
38°
23
57°
34°
24
55°
39°
25
58°
35°
26
53°
37°
27
52°
37°
28
57°
38°
29
58°
29°
30
59°
28°
31
50°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Nashua
Nashua's October 2026 forecast shows daily high temperatures ranging from 50° to 75°, with overnight lows between 27° and 52°. The average high for October is 64° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Nashua. See also: November | December | January.