S
M
T
W
T
F
S
26
65°
48°
27
79°
41°
28
77°
54°
29
69°
49°
30
58°
38°
1
58°
33°
2
56°
30°
3
63°
28°
4
74°
48°
5
74°
59°
6
64°
49°
7
62°
37°
8
72°
35°
9
72°
52°
10
71°
52°
11
69°
47°
12
73°
39°
13
74°
48°
14
61°
40°
15
70°
52°
16
79°
62°
17
87°
60°
18
91°
65°
19
86°
64°
20
79°
58°
21
72°
54°
22
71°
53°
23
74°
52°
24
83°
57°
25
82°
60°
26
83°
59°
27
82°
52°
28
76°
57°
29
78°
58°
30
77°
56°
31
72°
51°
1
72°
52°
2
73°
50°
3
72°
50°
4
73°
53°
5
80°
59°
6
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Stewart
Stewart's May 2026 forecast shows daily high temperatures ranging from 61° to 91°, with overnight lows between 40° and 65°. The average high for May is 77° with an average low of 56°. 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 Stewart. See also: June | July | August.