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
N/A
14
65°
47°
15
67°
53°
16
80°
64°
17
87°
61°
18
90°
67°
19
95°
70°
20
86°
60°
21
73°
57°
22
73°
54°
23
74°
57°
24
73°
56°
25
74°
57°
26
78°
58°
27
73°
59°
28
74°
56°
29
73°
58°
30
74°
63°
31
81°
60°
1
74°
57°
2
75°
57°
3
74°
56°
4
75°
56°
5
76°
64°
6
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Lower Merion Township
Lower Merion Township's May 2026 forecast shows daily high temperatures ranging from 65° to 95°, with overnight lows between 47° and 70°. The average high for May is 77° with an average low of 59°. 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 Lower Merion Township. See also: June | July | August.
