S
M
T
W
T
F
S
26
54°
40°
27
67°
43°
28
63°
44°
29
60°
48°
30
58°
41°
1
60°
44°
2
59°
40°
3
60°
43°
4
67°
46°
5
68°
49°
6
69°
49°
7
67°
47°
8
65°
48°
9
64°
47°
10
65°
48°
11
66°
46°
12
66°
49°
13
67°
48°
14
67°
45°
15
65°
45°
16
63°
46°
17
62°
45°
18
66°
46°
19
72°
51°
20
70°
48°
21
68°
47°
22
69°
46°
23
68°
46°
24
69°
49°
25
75°
56°
26
76°
49°
27
69°
49°
28
69°
50°
29
72°
53°
30
78°
57°
31
79°
57°
1
78°
56°
2
80°
59°
3
81°
60°
4
81°
58°
5
80°
52°
6
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Stamford
Stamford's May 2026 forecast shows daily high temperatures ranging from 58° to 81°, with overnight lows between 40° and 60°. The average high for May is 69° 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 Stamford. See also: June | July | August.
