S
M
T
W
T
F
S
27
56°
30°
28
54°
29°
29
57°
32°
30
52°
30°
1
47°
31°
2
57°
31°
3
45°
22°
4
57°
31°
5
Hist. Avg.
53°
26°
6
Hist. Avg.
52°
26°
7
Hist. Avg.
52°
26°
8
Hist. Avg.
52°
26°
9
Hist. Avg.
51°
25°
10
Hist. Avg.
51°
25°
11
Hist. Avg.
50°
25°
12
Hist. Avg.
50°
24°
13
Hist. Avg.
49°
24°
14
Hist. Avg.
49°
24°
15
Hist. Avg.
48°
24°
16
Hist. Avg.
48°
23°
17
Hist. Avg.
48°
23°
18
Hist. Avg.
47°
23°
19
Hist. Avg.
47°
22°
20
Hist. Avg.
46°
22°
21
Hist. Avg.
46°
22°
22
Hist. Avg.
45°
22°
23
Hist. Avg.
45°
21°
24
Hist. Avg.
44°
21°
25
Hist. Avg.
44°
20°
26
Hist. Avg.
44°
20°
27
Hist. Avg.
43°
20°
28
Hist. Avg.
43°
19°
29
Hist. Avg.
42°
19°
30
Hist. Avg.
42°
19°
31
Hist. Avg.
41°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Yellowstone Lake
Yellowstone Lake's October 2026 forecast shows daily high temperatures ranging from 45° to 57°, with overnight lows between 22° and 32°. The average high for October is 53° with an average low of 30°. 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 Lake. See also: November | December | January.
