S
M
T
W
T
F
S
27
76°
57°
28
83°
53°
29
91°
56°
30
95°
59°
1
93°
60°
2
90°
59°
3
97°
60°
4
87°
63°
5
98°
62°
6
95°
62°
7
94°
60°
8
93°
59°
9
93°
63°
10
69°
55°
11
67°
49°
12
68°
48°
13
74°
48°
14
84°
50°
15
85°
53°
16
92°
55°
17
85°
53°
18
78°
52°
19
63°
46°
20
71°
50°
21
73°
50°
22
65°
46°
23
72°
42°
24
77°
44°
25
78°
45°
26
72°
45°
27
76°
45°
28
75°
44°
29
71°
50°
30
62°
43°
31
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Kelseyville
Kelseyville's October 2026 forecast shows daily high temperatures ranging from 62° to 78°, with overnight lows between 42° and 50°. The average high for October is 72° with an average low of 46°. 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 Kelseyville. See also: November | December | January.
