S
M
T
W
T
F
S
26
63°
43°
27
72°
40°
28
74°
50°
29
56°
46°
30
52°
34°
1
44°
34°
2
44°
31°
3
58°
45°
4
70°
57°
5
67°
49°
6
53°
42°
7
45°
35°
8
49°
38°
9
54°
43°
10
58°
42°
11
56°
42°
12
58°
43°
13
61°
46°
14
65°
48°
15
64°
47°
16
71°
51°
17
73°
52°
18
72°
50°
19
67°
49°
20
74°
50°
21
71°
49°
22
66°
43°
23
62°
42°
24
64°
44°
25
65°
45°
26
65°
45°
27
66°
44°
28
65°
44°
29
66°
45°
30
67°
45°
31
72°
54°
1
68°
50°
2
69°
46°
3
69°
54°
4
73°
54°
5
73°
53°
6
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in New Buffalo
New Buffalo's May 2026 forecast shows daily high temperatures ranging from 44° to 78°, with overnight lows between 31° and 57°. The average high for May is 64° with an average low of 46°. 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 New Buffalo. See also: June | July | August.
