S
M
T
W
T
F
S
28
80°
68°
29
91°
71°
30
91°
66°
1
88°
65°
2
86°
65°
3
85°
60°
4
82°
62°
5
83°
62°
6
82°
60°
7
82°
58°
8
81°
59°
9
85°
61°
10
74°
58°
11
81°
59°
12
76°
58°
13
76°
58°
14
81°
59°
15
81°
60°
16
82°
60°
17
81°
59°
18
80°
59°
19
75°
58°
20
78°
59°
21
81°
60°
22
82°
61°
23
83°
59°
24
78°
59°
25
77°
60°
26
83°
60°
27
80°
59°
28
81°
60°
29
82°
59°
30
75°
57°
31
74°
58°
1
75°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Marengo
Marengo's July 2026 forecast shows daily high temperatures ranging from 74° to 91°, with overnight lows between 57° and 71°. The average high for July is 81° with an average low of 60°. 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 Marengo. See also: August | September | October.
