S
M
T
W
T
F
S
26
58°
38°
27
56°
36°
28
55°
36°
29
55°
32°
30
56°
31°
1
56°
31°
2
55°
32°
3
55°
34°
4
57°
35°
5
56°
33°
6
57°
34°
7
57°
35°
8
61°
35°
9
59°
34°
10
58°
35°
11
58°
35°
12
59°
38°
13
67°
45°
14
66°
45°
15
62°
46°
16
72°
43°
17
62°
40°
18
62°
37°
19
63°
44°
20
70°
47°
21
72°
40°
22
63°
39°
23
64°
40°
24
65°
39°
25
67°
42°
26
75°
48°
27
76°
49°
28
77°
43°
29
68°
42°
30
72°
45°
31
67°
50°
1
75°
42°
2
69°
41°
3
68°
40°
4
66°
43°
5
69°
47°
6
74°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Spencer
Spencer's May 2026 forecast shows daily high temperatures ranging from 55° to 77°, with overnight lows between 31° and 52°. The average high for May is 64° with an average low of 40°. 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 Spencer. See also: June | July | August.