S
M
T
W
T
F
S
26
86°
75°
27
86°
75°
28
87°
73°
29
87°
73°
30
86°
75°
31
86°
75°
1
87°
74°
2
86°
73°
3
86°
73°
4
87°
75°
5
86°
75°
6
86°
74°
7
87°
74°
8
86°
73°
9
86°
75°
10
87°
75°
11
86°
74°
12
87°
75°
13
87°
73°
14
89°
73°
15
90°
73°
16
89°
72°
17
90°
73°
18
89°
73°
19
89°
72°
20
90°
74°
21
90°
73°
22
89°
74°
23
89°
74°
24
90°
73°
25
89°
74°
26
90°
73°
27
89°
74°
28
90°
75°
29
91°
74°
30
90°
74°
31
90°
75°
1
89°
74°
2
90°
74°
3
90°
73°
4
89°
73°
5
89°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Notre Dame
Notre Dame's August 2026 forecast shows daily high temperatures ranging from 86° to 91°, with overnight lows between 72° and 75°. The average high for August is 88° with an average low of 74°. 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 Notre Dame. See also: September | October | November.