S
M
T
W
T
F
S
26
94°
70°
27
95°
74°
28
88°
71°
29
85°
62°
30
86°
62°
31
74°
66°
1
73°
66°
2
82°
67°
3
85°
62°
4
86°
64°
5
87°
68°
6
80°
68°
7
84°
68°
8
85°
69°
9
87°
69°
10
91°
68°
11
86°
69°
12
83°
67°
13
84°
66°
14
82°
64°
15
86°
65°
16
85°
66°
17
86°
65°
18
86°
62°
19
91°
67°
20
89°
66°
21
88°
66°
22
89°
67°
23
90°
67°
24
88°
66°
25
85°
66°
26
87°
65°
27
86°
64°
28
85°
65°
29
87°
63°
30
86°
64°
31
86°
64°
1
87°
63°
2
87°
63°
3
85°
62°
4
85°
61°
5
86°
63°
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 80° to 91°, with overnight lows between 61° and 69°. The average high for August is 86° with an average low of 66°. 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.
