S
M
T
W
T
F
S
26
67°
38°
27
66°
41°
28
67°
46°
29
72°
40°
30
79°
43°
1
70°
52°
2
72°
51°
3
85°
51°
4
70°
54°
5
73°
54°
6
74°
51°
7
76°
51°
8
75°
49°
9
83°
47°
10
74°
52°
11
81°
48°
12
78°
53°
13
68°
50°
14
71°
49°
15
67°
47°
16
62°
41°
17
65°
44°
18
74°
48°
19
78°
49°
20
83°
54°
21
89°
54°
22
83°
48°
23
78°
49°
24
77°
50°
25
75°
49°
26
74°
50°
27
78°
52°
28
68°
47°
29
68°
48°
30
69°
50°
31
76°
54°
1
76°
53°
2
75°
54°
3
72°
50°
4
68°
47°
5
67°
47°
6
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Winston
Winston's May 2026 forecast shows daily high temperatures ranging from 62° to 89°, with overnight lows between 41° and 54°. The average high for May is 73° 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 Winston. See also: June | July | August.