S
M
T
W
T
F
S
26
64°
45°
27
66°
48°
28
54°
43°
29
66°
39°
30
72°
43°
1
66°
46°
2
65°
50°
3
61°
49°
4
61°
45°
5
57°
44°
6
56°
41°
7
57°
43°
8
62°
46°
9
63°
47°
10
60°
47°
11
61°
45°
12
61°
44°
13
60°
46°
14
59°
42°
15
62°
49°
16
62°
49°
17
63°
48°
18
64°
49°
19
61°
48°
20
60°
47°
21
60°
45°
22
61°
46°
23
62°
45°
24
62°
45°
25
60°
44°
26
60°
45°
27
64°
49°
28
63°
51°
29
66°
51°
30
64°
46°
31
61°
45°
1
60°
45°
2
60°
44°
3
61°
46°
4
61°
45°
5
62°
46°
6
62°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Siston
Siston's May 2026 forecast shows daily high temperatures ranging from 56° to 66°, with overnight lows between 41° and 51°. The average high for May is 61° with an average low of 46°. 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 Siston. See also: June | July | August.
