S
M
T
W
T
F
S
26
67°
40°
27
75°
39°
28
70°
49°
29
68°
48°
30
59°
46°
1
61°
41°
2
56°
37°
3
57°
36°
4
73°
52°
5
78°
55°
6
64°
47°
7
60°
41°
8
59°
39°
9
56°
47°
10
61°
48°
11
60°
44°
12
61°
45°
13
65°
47°
14
66°
49°
15
61°
50°
16
63°
49°
17
67°
48°
18
74°
53°
19
72°
52°
20
71°
53°
21
73°
52°
22
72°
54°
23
66°
46°
24
65°
47°
25
66°
47°
26
67°
50°
27
68°
47°
28
67°
47°
29
67°
48°
30
68°
48°
31
69°
56°
1
70°
50°
2
71°
49°
3
71°
54°
4
74°
56°
5
71°
52°
6
74°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rensselaer
Rensselaer's May 2026 forecast shows daily high temperatures ranging from 56° to 78°, with overnight lows between 39° and 58°. The average high for May is 67° with an average low of 49°. 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.
