S
M
T
W
T
F
S
26
97°
66°
27
100°
66°
28
101°
68°
29
101°
69°
30
102°
71°
31
103°
71°
1
102°
70°
2
103°
71°
3
103°
71°
4
102°
70°
5
102°
70°
6
101°
69°
7
101°
70°
8
102°
71°
9
102°
71°
10
101°
70°
11
102°
70°
12
102°
69°
13
101°
66°
14
98°
70°
15
100°
69°
16
99°
67°
17
98°
66°
18
97°
65°
19
96°
66°
20
97°
64°
21
99°
68°
22
100°
69°
23
102°
69°
24
102°
68°
25
101°
70°
26
102°
69°
27
100°
67°
28
101°
67°
29
100°
64°
30
98°
63°
31
95°
65°
1
97°
64°
2
99°
64°
3
98°
62°
4
94°
59°
5
92°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rancho Seco
Rancho Seco's August 2026 forecast shows daily high temperatures ranging from 92° to 103°, with overnight lows between 58° and 71°. The average high for August is 100° with an average low of 67°. 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 Rancho Seco. See also: September | October | November.
