S
M
T
W
T
F
S
26
85°
56°
27
85°
57°
28
86°
58°
29
85°
57°
30
86°
58°
31
90°
60°
1
91°
62°
2
91°
62°
3
89°
61°
4
89°
59°
5
88°
59°
6
88°
60°
7
89°
59°
8
90°
59°
9
89°
61°
10
92°
60°
11
91°
57°
12
90°
56°
13
89°
59°
14
90°
62°
15
91°
61°
16
92°
62°
17
94°
62°
18
95°
61°
19
93°
62°
20
94°
62°
21
94°
61°
22
93°
61°
23
94°
60°
24
94°
61°
25
92°
61°
26
92°
60°
27
93°
61°
28
93°
59°
29
91°
57°
30
89°
58°
31
90°
56°
1
91°
56°
2
90°
55°
3
88°
53°
4
87°
54°
5
85°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rosemont
Rosemont's August 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 53° and 62°. The average high for August is 90° 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 August weather will actually feel in Rosemont. See also: September | October | November.
