S
M
T
W
T
F
S
26
56°
40°
27
69°
31°
28
56°
48°
29
55°
47°
30
49°
34°
1
51°
31°
2
46°
31°
3
58°
29°
4
73°
54°
5
72°
53°
6
61°
41°
7
57°
34°
8
56°
42°
9
57°
38°
10
66°
43°
11
56°
34°
12
57°
38°
13
62°
42°
14
62°
43°
15
61°
42°
16
69°
42°
17
68°
43°
18
73°
48°
19
71°
44°
20
74°
49°
21
73°
47°
22
70°
41°
23
64°
40°
24
64°
41°
25
65°
43°
26
65°
42°
27
66°
42°
28
66°
43°
29
67°
42°
30
67°
43°
31
70°
52°
1
68°
49°
2
70°
46°
3
70°
48°
4
72°
51°
5
71°
48°
6
76°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sinnemahoning
Sinnemahoning's May 2026 forecast shows daily high temperatures ranging from 56° to 76°, with overnight lows between 34° and 54°. The average high for May is 66° with an average low of 44°. 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 Sinnemahoning. See also: June | July | August.
