S
M
T
W
T
F
S
27
66°
28°
28
61°
30°
29
63°
30°
30
66°
27°
1
66°
27°
2
68°
27°
3
70°
27°
4
73°
23°
5
75°
27°
6
73°
27°
7
73°
27°
8
72°
25°
9
72°
25°
10
59°
41°
11
43°
30°
12
37°
30°
13
48°
28°
14
50°
27°
15
26°
21°
16
59°
16°
17
59°
19°
18
61°
21°
19
61°
19°
20
61°
27°
21
61°
27°
22
59°
36°
23
45°
30°
24
43°
19°
25
46°
25°
26
48°
27°
27
34°
27°
28
36°
21°
29
46°
14°
30
50°
33°
31
47°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Yellowstone National Park
Yellowstone National Park's October 2026 forecast shows daily high temperatures ranging from 47° to 50°, with overnight lows between 33° and 33°. The average high for October is 49° with an average low of 33°. 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 Yellowstone National Park. See also: November | December | January.
