S
M
T
W
T
F
S
26
83°
64°
27
81°
60°
28
79°
59°
29
80°
62°
30
83°
63°
31
80°
61°
1
85°
65°
2
85°
61°
3
80°
60°
4
79°
59°
5
80°
60°
6
80°
61°
7
81°
60°
8
79°
59°
9
82°
64°
10
85°
63°
11
79°
64°
12
85°
65°
13
85°
65°
14
83°
64°
15
85°
64°
16
86°
58°
17
79°
59°
18
80°
63°
19
79°
59°
20
78°
56°
21
77°
57°
22
79°
58°
23
84°
60°
24
85°
63°
25
86°
62°
26
85°
56°
27
78°
55°
28
78°
55°
29
79°
56°
30
82°
61°
31
83°
62°
1
83°
62°
2
82°
59°
3
77°
59°
4
83°
61°
5
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mount Morris
Mount Morris's August 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 55° and 65°. The average high for August is 81° with an average low of 61°. 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 Mount Morris. See also: September | October | November.
