S
M
T
W
T
F
S
27
64°
33°
28
52°
31°
29
60°
32°
30
63°
30°
1
64°
30°
2
65°
30°
3
65°
29°
4
69°
28°
5
71°
30°
6
70°
31°
7
68°
28°
8
67°
30°
9
66°
37°
10
54°
35°
11
45°
34°
12
41°
30°
13
49°
29°
14
50°
28°
15
47°
24°
16
48°
23°
17
46°
25°
18
48°
25°
19
49°
26°
20
33°
11°
21
49°
27°
22
48°
26°
23
44°
22°
24
47°
22°
25
44°
21°
26
43°
20°
27
44°
20°
28
44°
19°
29
41°
18°
30
38°
19°
31
42°
24°
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 33° to 68°, with overnight lows between 11° and 37°. The average high for October is 48° with an average low of 25°. 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.
