S
M
T
W
T
F
S
26
60°
43°
27
73°
41°
28
70°
50°
29
64°
47°
30
51°
42°
1
55°
34°
2
47°
34°
3
58°
34°
4
72°
57°
5
76°
56°
6
61°
42°
7
56°
37°
8
63°
45°
9
62°
46°
10
69°
51°
11
63°
44°
12
64°
47°
13
66°
52°
14
65°
49°
15
65°
48°
16
70°
50°
17
73°
51°
18
76°
55°
19
73°
55°
20
77°
56°
21
74°
53°
22
72°
48°
23
66°
47°
24
68°
49°
25
68°
50°
26
67°
49°
27
69°
49°
28
69°
50°
29
70°
49°
30
71°
50°
31
76°
59°
1
72°
56°
2
73°
52°
3
73°
56°
4
75°
59°
5
77°
56°
6
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monongahela
Monongahela's May 2026 forecast shows daily high temperatures ranging from 56° to 81°, with overnight lows between 37° and 61°. The average high for May is 70° with an average low of 51°. 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 Monongahela. See also: June | July | August.
