S
M
T
W
T
F
S
26
69°
48°
27
80°
44°
28
77°
53°
29
67°
49°
30
56°
39°
1
59°
34°
2
54°
33°
3
61°
30°
4
72°
47°
5
76°
59°
6
61°
50°
7
63°
40°
8
71°
36°
9
70°
52°
10
70°
52°
11
69°
46°
12
73°
42°
13
72°
49°
14
59°
39°
15
70°
48°
16
79°
63°
17
88°
61°
18
90°
67°
19
86°
62°
20
80°
57°
21
70°
51°
22
68°
52°
23
72°
50°
24
81°
53°
25
80°
57°
26
81°
57°
27
80°
51°
28
76°
57°
29
77°
57°
30
76°
55°
31
71°
51°
1
71°
50°
2
72°
48°
3
71°
49°
4
72°
51°
5
79°
58°
6
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sistersville
Sistersville's May 2026 forecast shows daily high temperatures ranging from 59° to 90°, with overnight lows between 39° and 67°. The average high for May is 76° with an average low of 54°. 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 Sistersville. See also: June | July | August.
