S
M
T
W
T
F
S
26
86°
73°
27
90°
74°
28
91°
75°
29
87°
75°
30
91°
72°
31
88°
69°
1
85°
68°
2
86°
68°
3
86°
73°
4
91°
75°
5
92°
75°
6
93°
73°
7
88°
73°
8
90°
73°
9
91°
72°
10
89°
66°
11
85°
67°
12
86°
68°
13
85°
66°
14
88°
67°
15
85°
68°
16
84°
72°
17
84°
71°
18
85°
69°
19
84°
67°
20
84°
67°
21
83°
70°
22
84°
71°
23
85°
69°
24
89°
71°
25
89°
65°
26
88°
64°
27
83°
65°
28
82°
66°
29
83°
68°
30
82°
69°
31
83°
70°
1
87°
64°
2
82°
64°
3
82°
65°
4
83°
63°
5
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rittenhouse
Rittenhouse's August 2026 forecast shows daily high temperatures ranging from 81° to 93°, with overnight lows between 63° and 75°. The average high for August is 86° with an average low of 69°. 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 Rittenhouse. See also: September | October | November.