S
M
T
W
T
F
S
26
88°
74°
27
91°
75°
28
94°
73°
29
91°
71°
30
86°
67°
31
89°
67°
1
87°
68°
2
85°
70°
3
88°
69°
4
83°
69°
5
86°
69°
6
86°
70°
7
87°
70°
8
89°
71°
9
91°
71°
10
91°
71°
11
92°
70°
12
91°
70°
13
93°
73°
14
94°
74°
15
95°
73°
16
95°
72°
17
99°
74°
18
93°
74°
19
93°
71°
20
94°
71°
21
90°
70°
22
89°
69°
23
90°
67°
24
90°
69°
25
92°
68°
26
91°
69°
27
89°
70°
28
90°
68°
29
85°
69°
30
88°
70°
31
82°
69°
1
81°
67°
2
81°
67°
3
82°
66°
4
81°
63°
5
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Seneca
Seneca's August 2026 forecast shows daily high temperatures ranging from 80° to 99°, with overnight lows between 63° and 74°. The average high for August is 89° 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 Seneca. See also: September | October | November.
