S
M
T
W
T
F
S
26
35°
20°
27
45°
26°
28
50°
22°
29
49°
30°
30
55°
29°
1
70°
41°
2
66°
35°
3
72°
43°
4
51°
31°
5
50°
27°
6
50°
28°
7
61°
34°
8
69°
36°
9
64°
37°
10
62°
36°
11
63°
38°
12
64°
38°
13
68°
40°
14
67°
39°
15
59°
39°
16
59°
43°
17
61°
40°
18
64°
40°
19
67°
46°
20
61°
41°
21
60°
43°
22
62°
41°
23
63°
45°
24
62°
39°
25
63°
41°
26
66°
44°
27
69°
47°
28
70°
50°
29
74°
43°
30
64°
42°
31
65°
51°
1
66°
51°
2
66°
50°
3
67°
50°
4
67°
49°
5
66°
52°
6
67°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Williston
Williston's May 2026 forecast shows daily high temperatures ranging from 50° to 74°, with overnight lows between 27° and 52°. The average high for May is 64° with an average low of 42°. 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 Williston. See also: June | July | August.
