S
M
T
W
T
F
S
26
68°
43°
27
64°
52°
28
59°
52°
29
61°
37°
30
55°
32°
1
50°
36°
2
54°
32°
3
61°
37°
4
77°
48°
5
55°
46°
6
55°
37°
7
59°
34°
8
63°
48°
9
75°
46°
10
64°
43°
11
63°
39°
12
81°
37°
13
59°
37°
14
66°
36°
15
72°
46°
16
82°
61°
17
84°
61°
18
81°
63°
19
82°
61°
20
64°
46°
21
70°
45°
22
73°
52°
23
79°
55°
24
72°
55°
25
82°
50°
26
81°
54°
27
N/A
28
84°
54°
29
81°
56°
30
82°
51°
31
78°
53°
1
81°
52°
2
82°
52°
3
83°
58°
4
80°
61°
5
76°
58°
6
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Rensselaer
Rensselaer's May 2026 forecast shows daily high temperatures ranging from 76° to 84°, with overnight lows between 51° and 61°. The average high for May is 81° with an average low of 55°. 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 Rensselaer. See also: June | July | August.
