S
M
T
W
T
F
S
26
76°
53°
27
75°
52°
28
78°
56°
29
75°
56°
30
77°
57°
31
77°
56°
1
78°
56°
2
77°
55°
3
75°
55°
4
75°
54°
5
77°
55°
6
77°
56°
7
78°
56°
8
78°
55°
9
79°
56°
10
76°
56°
11
75°
55°
12
77°
55°
13
78°
56°
14
79°
56°
15
78°
55°
16
78°
56°
17
76°
54°
18
76°
54°
19
75°
53°
20
76°
55°
21
75°
53°
22
74°
53°
23
75°
54°
24
75°
50°
25
76°
52°
26
73°
52°
27
74°
50°
28
75°
51°
29
76°
47°
30
66°
39°
31
63°
43°
1
66°
47°
2
69°
48°
3
72°
46°
4
72°
45°
5
70°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Assumption
Assumption's August 2026 forecast shows daily high temperatures ranging from 63° to 79°, with overnight lows between 39° and 57°. The average high for August is 75° with an average low of 53°. 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 Assumption. See also: September | October | November.
