S
M
T
W
T
F
S
26
89°
48°
27
81°
53°
28
85°
46°
29
72°
48°
30
63°
47°
1
52°
40°
2
69°
37°
3
76°
41°
4
85°
55°
5
78°
47°
6
78°
39°
7
78°
37°
8
86°
52°
9
92°
48°
10
73°
43°
11
84°
40°
12
97°
57°
13
97°
52°
14
97°
54°
15
94°
58°
16
96°
57°
17
93°
58°
18
93°
57°
19
77°
44°
20
70°
51°
21
81°
51°
22
86°
55°
23
87°
51°
24
91°
52°
25
87°
56°
26
69°
56°
27
81°
54°
28
87°
57°
29
87°
62°
30
89°
60°
31
95°
61°
1
96°
64°
2
88°
60°
3
78°
59°
4
80°
62°
5
82°
60°
6
88°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fort Sumner
Fort Sumner's May 2026 forecast shows daily high temperatures ranging from 78° to 96°, with overnight lows between 59° and 64°. The average high for May is 87° with an average low of 61°. 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 Fort Sumner. See also: June | July | August.
