S
M
T
W
T
F
S
28
81°
60°
29
91°
69°
30
91°
75°
1
92°
76°
2
91°
76°
3
91°
68°
4
86°
70°
5
80°
70°
6
83°
64°
7
85°
60°
8
86°
62°
9
85°
67°
10
86°
68°
11
84°
67°
12
85°
61°
13
89°
60°
14
93°
66°
15
92°
68°
16
88°
67°
17
89°
63°
18
88°
68°
19
80°
61°
20
81°
58°
21
84°
63°
22
74°
51°
23
78°
49°
24
78°
54°
25
81°
55°
26
86°
68°
27
84°
69°
28
80°
64°
29
81°
60°
30
82°
59°
31
84°
67°
1
73°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Marcellus
Marcellus's July 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 59° and 67°. The average high for July is 80° with an average low of 63°. 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 Marcellus. See also: August | September | October.
