S
M
T
W
T
F
S
26
53°
35°
27
53°
38°
28
58°
39°
29
67°
40°
30
60°
42°
1
62°
41°
2
55°
42°
3
60°
41°
4
56°
40°
5
61°
47°
6
57°
48°
7
68°
46°
8
65°
47°
9
65°
44°
10
61°
39°
11
58°
39°
12
58°
40°
13
60°
41°
14
62°
48°
15
61°
47°
16
65°
52°
17
66°
44°
18
61°
42°
19
62°
46°
20
64°
52°
21
66°
53°
22
71°
54°
23
70°
48°
24
62°
46°
25
66°
54°
26
74°
55°
27
72°
49°
28
65°
47°
29
74°
51°
30
69°
51°
31
75°
53°
1
76°
54°
2
79°
57°
3
78°
56°
4
78°
58°
5
77°
58°
6
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Winchester
Winchester's May 2026 forecast shows daily high temperatures ranging from 53° to 79°, with overnight lows between 35° and 59°. The average high for May is 65° with an average low of 47°. 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 Winchester. See also: June | July | August.
