S
M
T
W
T
F
S
26
79°
61°
27
79°
57°
28
85°
57°
29
88°
61°
30
90°
63°
1
95°
65°
2
97°
68°
3
96°
71°
4
79°
65°
5
79°
60°
6
86°
55°
7
98°
63°
8
102°
68°
9
104°
69°
10
106°
72°
11
109°
75°
12
102°
79°
13
101°
71°
14
99°
65°
15
103°
63°
16
100°
63°
17
94°
65°
18
91°
63°
19
95°
63°
20
98°
65°
21
98°
66°
22
96°
68°
23
93°
66°
24
95°
64°
25
98°
65°
26
97°
64°
27
93°
61°
28
92°
61°
29
94°
61°
30
96°
65°
31
102°
70°
1
104°
71°
2
105°
71°
3
105°
70°
4
104°
69°
5
99°
68°
6
99°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Steam
Steam's May 2026 forecast shows daily high temperatures ranging from 91° to 105°, with overnight lows between 61° and 71°. The average high for May is 98° with an average low of 66°. 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 Steam. See also: June | July | August.
