S
M
T
W
T
F
S
26
59°
41°
27
70°
36°
28
61°
38°
29
63°
48°
30
64°
48°
1
64°
47°
2
59°
40°
3
59°
42°
4
70°
53°
5
80°
58°
6
71°
54°
7
63°
42°
8
61°
43°
9
63°
49°
10
67°
48°
11
67°
49°
12
67°
52°
13
69°
50°
14
68°
51°
15
68°
53°
16
69°
53°
17
69°
52°
18
70°
57°
19
78°
58°
20
76°
57°
21
73°
58°
22
78°
56°
23
74°
56°
24
78°
55°
25
73°
52°
26
71°
55°
27
71°
59°
28
76°
61°
29
80°
60°
30
79°
59°
31
79°
59°
1
76°
54°
2
72°
54°
3
71°
53°
4
74°
54°
5
73°
55°
6
74°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Valley Forge Mountain
Valley Forge Mountain's May 2026 forecast shows daily high temperatures ranging from 59° to 80°, with overnight lows between 40° and 61°. The average high for May is 71° with an average low of 53°. 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 Valley Forge Mountain. See also: June | July | August.
