S
M
T
W
T
F
S
27
76°
63°
28
84°
57°
29
91°
65°
30
87°
67°
1
90°
69°
2
93°
70°
3
96°
73°
4
93°
73°
5
95°
76°
6
96°
75°
7
96°
76°
8
95°
73°
9
92°
72°
10
70°
56°
11
47°
30°
12
49°
31°
13
59°
40°
14
68°
45°
15
74°
48°
16
73°
39°
17
68°
39°
18
68°
35°
19
58°
31°
20
58°
36°
21
62°
35°
22
60°
37°
23
61°
36°
24
64°
35°
25
55°
31°
26
58°
36°
27
59°
36°
28
58°
35°
29
57°
35°
30
57°
34°
31
47°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lassen Volcanic National Park
Lassen Volcanic National Park's October 2026 forecast shows daily high temperatures ranging from 47° to 74°, with overnight lows between 30° and 48°. The average high for October is 60° with an average low of 36°. 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 Lassen Volcanic National Park. See also: November | December | January.