S
M
T
W
T
F
S
26
62°
36°
27
72°
35°
28
70°
50°
29
64°
52°
30
52°
42°
1
54°
34°
2
46°
36°
3
54°
35°
4
73°
42°
5
76°
49°
6
49°
43°
7
55°
35°
8
53°
36°
9
56°
36°
10
58°
36°
11
54°
30°
12
59°
30°
13
60°
43°
14
54°
44°
15
59°
43°
16
79°
40°
17
82°
54°
18
88°
67°
19
87°
66°
20
72°
37°
21
58°
39°
22
56°
48°
23
51°
49°
24
56°
51°
25
60°
50°
26
59°
52°
27
61°
49°
28
64°
52°
29
63°
53°
30
66°
49°
31
66°
53°
1
62°
51°
2
62°
54°
3
60°
53°
4
61°
55°
5
62°
54°
6
64°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hartwick
Hartwick's May 2026 forecast shows daily high temperatures ranging from 51° to 88°, with overnight lows between 37° and 67°. The average high for May is 65° with an average low of 52°. 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 Hartwick. See also: June | July | August.
