S
M
T
W
T
F
S
27
78°
55°
28
85°
47°
29
99°
47°
30
98°
51°
1
95°
50°
2
96°
52°
3
103°
55°
4
98°
59°
5
100°
58°
6
102°
55°
7
101°
54°
8
96°
62°
9
89°
55°
10
75°
47°
11
68°
49°
12
70°
48°
13
76°
49°
14
79°
49°
15
83°
52°
16
86°
51°
17
83°
50°
18
85°
51°
19
87°
53°
20
89°
53°
21
87°
51°
22
75°
47°
23
78°
50°
24
77°
49°
25
77°
50°
26
76°
49°
27
77°
49°
28
76°
48°
29
76°
49°
30
75°
50°
31
73°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lake Berryessa
Lake Berryessa's October 2026 forecast shows daily high temperatures ranging from 68° to 96°, with overnight lows between 47° and 62°. The average high for October is 80° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Lake Berryessa. See also: November | December | January.
