S
M
T
W
T
F
S
26
41°
22°
27
44°
19°
28
55°
26°
29
55°
30°
30
65°
29°
1
69°
32°
2
69°
42°
3
77°
38°
4
54°
34°
5
49°
27°
6
57°
21°
7
68°
33°
8
76°
37°
9
66°
39°
10
73°
43°
11
78°
47°
12
74°
38°
13
89°
47°
14
71°
48°
15
68°
41°
16
66°
36°
17
52°
38°
18
48°
34°
19
66°
29°
20
65°
43°
21
64°
41°
22
69°
39°
23
75°
51°
24
83°
53°
25
88°
59°
26
92°
61°
27
86°
63°
28
90°
63°
29
89°
58°
30
84°
56°
31
87°
58°
1
86°
57°
2
84°
56°
3
87°
56°
4
87°
53°
5
77°
51°
6
81°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Nashua
Nashua's May 2026 forecast shows daily high temperatures ranging from 75° to 92°, with overnight lows between 51° and 63°. The average high for May is 85° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Nashua. See also: June | July | August.
