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