S
M
T
W
T
F
S
28
83°
70°
29
90°
70°
30
91°
73°
1
97°
74°
2
103°
80°
3
102°
82°
4
101°
76°
5
94°
73°
6
81°
70°
7
78°
69°
8
86°
70°
9
81°
72°
10
87°
74°
11
89°
70°
12
85°
65°
13
85°
65°
14
93°
70°
15
97°
71°
16
93°
69°
17
94°
72°
18
89°
70°
19
91°
72°
20
88°
68°
21
85°
68°
22
84°
69°
23
85°
70°
24
83°
68°
25
84°
69°
26
86°
69°
27
85°
68°
28
86°
72°
29
88°
68°
30
84°
69°
31
84°
69°
1
85°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Merion
Merion's July 2026 forecast shows daily high temperatures ranging from 83° to 97°, with overnight lows between 65° and 72°. The average high for July is 87° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Merion. See also: August | September | October.