S
M
T
W
T
F
S
26
80°
54°
27
78°
55°
28
78°
55°
29
79°
56°
30
79°
55°
31
78°
54°
1
78°
56°
2
80°
59°
3
80°
59°
4
79°
56°
5
82°
57°
6
82°
58°
7
85°
62°
8
86°
62°
9
85°
63°
10
86°
58°
11
82°
54°
12
78°
56°
13
80°
55°
14
80°
54°
15
79°
59°
16
86°
61°
17
86°
62°
18
85°
55°
19
Hist. Avg.
82°
59°
20
Hist. Avg.
81°
59°
21
Hist. Avg.
81°
58°
22
Hist. Avg.
81°
58°
23
Hist. Avg.
81°
58°
24
Hist. Avg.
81°
58°
25
Hist. Avg.
81°
58°
26
Hist. Avg.
81°
58°
27
Hist. Avg.
80°
57°
28
Hist. Avg.
80°
57°
29
Hist. Avg.
80°
57°
30
Hist. Avg.
80°
57°
31
Hist. Avg.
80°
56°
1
Hist. Avg.
80°
56°
2
Hist. Avg.
79°
56°
3
Hist. Avg.
79°
56°
4
Hist. Avg.
79°
56°
5
Hist. Avg.
79°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Ann Arbor
Ann Arbor's August 2026 forecast shows daily high temperatures ranging from 78° to 86°, with overnight lows between 54° and 63°. The average high for August is 81° with an average low of 57°. 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 Ann Arbor. See also: September | October | November.