S
M
T
W
T
F
S
26
62°
39°
27
72°
35°
28
62°
36°
29
65°
48°
30
65°
47°
1
66°
38°
2
62°
43°
3
61°
40°
4
74°
36°
5
84°
58°
6
69°
53°
7
64°
48°
8
67°
40°
9
63°
47°
10
77°
46°
11
62°
45°
12
68°
38°
13
76°
53°
14
64°
46°
15
70°
48°
16
80°
61°
17
85°
60°
18
91°
65°
19
98°
68°
20
89°
63°
21
74°
54°
22
70°
52°
23
72°
54°
24
75°
55°
25
80°
59°
26
81°
62°
27
82°
56°
28
74°
54°
29
72°
56°
30
74°
61°
31
80°
58°
1
74°
55°
2
74°
55°
3
73°
54°
4
74°
54°
5
76°
62°
6
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Conshohocken
Conshohocken's May 2026 forecast shows daily high temperatures ranging from 64° to 98°, with overnight lows between 46° and 68°. The average high for May is 78° with an average low of 57°. 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 Conshohocken. See also: June | July | August.