S
M
T
W
T
F
S
26
59°
39°
27
65°
36°
28
N/A
29
63°
46°
30
59°
42°
1
59°
37°
2
56°
39°
3
55°
41°
4
61°
46°
5
61°
48°
6
63°
51°
7
63°
49°
8
59°
45°
9
58°
46°
10
61°
48°
11
62°
47°
12
62°
46°
13
63°
50°
14
65°
47°
15
63°
45°
16
61°
46°
17
61°
45°
18
62°
45°
19
65°
52°
20
66°
49°
21
64°
47°
22
65°
46°
23
64°
47°
24
65°
49°
25
66°
54°
26
67°
51°
27
66°
49°
28
66°
49°
29
69°
56°
30
74°
56°
31
74°
54°
1
70°
56°
2
73°
58°
3
77°
57°
4
70°
58°
5
76°
54°
6
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rumford
Rumford's May 2026 forecast shows daily high temperatures ranging from 55° to 77°, with overnight lows between 37° and 58°. The average high for May is 65° with an average low of 49°. 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 Rumford. See also: June | July | August.