S
M
T
W
T
F
S
26
92°
72°
27
86°
70°
28
80°
65°
29
80°
62°
30
87°
63°
31
81°
70°
1
73°
65°
2
78°
65°
3
83°
62°
4
86°
69°
5
82°
70°
6
82°
69°
7
87°
68°
8
84°
70°
9
84°
66°
10
87°
72°
11
81°
69°
12
84°
71°
13
78°
69°
14
80°
70°
15
79°
73°
16
86°
70°
17
80°
67°
18
79°
66°
19
80°
62°
20
82°
61°
21
77°
65°
22
81°
62°
23
78°
62°
24
78°
63°
25
79°
64°
26
79°
63°
27
77°
62°
28
80°
65°
29
79°
63°
30
78°
62°
31
81°
63°
1
80°
62°
2
75°
63°
3
73°
60°
4
74°
65°
5
74°
63°
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 73° to 82°, with overnight lows between 60° and 65°. The average high for August is 78° 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 August weather will actually feel in Rosemont. See also: September | October | November.
