S
M
T
W
T
F
S
27
65°
39°
28
68°
41°
29
71°
44°
30
72°
40°
1
69°
36°
2
59°
38°
3
68°
42°
4
70°
37°
5
72°
37°
6
65°
39°
7
63°
38°
8
56°
40°
9
58°
33°
10
56°
29°
11
54°
30°
12
57°
29°
13
59°
34°
14
63°
36°
15
59°
30°
16
52°
36°
17
54°
32°
18
51°
27°
19
50°
26°
20
48°
24°
21
48°
25°
22
47°
34°
23
49°
29°
24
50°
26°
25
49°
30°
26
54°
36°
27
56°
26°
28
54°
40°
29
48°
38°
30
Hist. Avg.
50°
29°
31
Hist. Avg.
50°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Flathead Reservation
Flathead Reservation's October 2026 forecast shows daily high temperatures ranging from 47° to 72°, with overnight lows between 24° and 44°. The average high for October is 58° with an average low of 34°. 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 Flathead Reservation. See also: November | December | January.
