S
M
T
W
T
F
S
26
81°
58°
27
84°
63°
28
80°
65°
29
81°
66°
30
78°
64°
31
84°
64°
1
86°
67°
2
83°
71°
3
81°
65°
4
83°
61°
5
89°
63°
6
89°
75°
7
90°
71°
8
87°
69°
9
87°
71°
10
86°
67°
11
82°
64°
12
86°
66°
13
86°
64°
14
84°
56°
15
82°
61°
16
78°
67°
17
79°
61°
18
80°
62°
19
82°
62°
20
83°
62°
21
83°
61°
22
79°
61°
23
78°
63°
24
80°
61°
25
80°
61°
26
82°
61°
27
83°
64°
28
84°
62°
29
82°
57°
30
75°
56°
31
74°
56°
1
76°
58°
2
74°
58°
3
74°
56°
4
75°
61°
5
74°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Katonah
Katonah's August 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 56° and 67°. The average high for August is 80° with an average low of 61°. 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 Katonah. See also: September | October | November.
