S
M
T
W
T
F
S
26
65°
41°
27
73°
36°
28
68°
39°
29
67°
48°
30
60°
46°
1
65°
35°
2
58°
35°
3
59°
42°
4
69°
49°
5
79°
60°
6
68°
56°
7
60°
43°
8
58°
41°
9
59°
43°
10
61°
46°
11
63°
44°
12
62°
47°
13
61°
48°
14
66°
47°
15
65°
48°
16
74°
53°
17
73°
52°
18
75°
53°
19
75°
52°
20
73°
53°
21
72°
51°
22
72°
47°
23
67°
45°
24
66°
47°
25
67°
47°
26
68°
50°
27
68°
47°
28
69°
48°
29
68°
47°
30
69°
48°
31
70°
56°
1
72°
54°
2
71°
50°
3
71°
54°
4
75°
57°
5
72°
54°
6
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fishkill
Fishkill's May 2026 forecast shows daily high temperatures ranging from 58° to 79°, with overnight lows between 35° and 60°. The average high for May is 68° 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 Fishkill. See also: June | July | August.
