S
M
T
W
T
F
S
27
66°
39°
28
70°
27°
29
60°
24°
30
56°
26°
1
58°
27°
2
61°
30°
3
65°
30°
4
70°
35°
5
70°
33°
6
69°
33°
7
68°
34°
8
63°
32°
9
62°
27°
10
62°
31°
11
61°
33°
12
65°
33°
13
67°
38°
14
68°
28°
15
55°
22°
16
50°
23°
17
50°
22°
18
51°
31°
19
59°
32°
20
57°
28°
21
54°
20°
22
49°
16°
23
46°
27°
24
47°
25°
25
47°
20°
26
46°
18°
27
46°
22°
28
47°
24°
29
48°
23°
30
51°
18°
31
45°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Alta
Alta's October 2026 forecast shows daily high temperatures ranging from 45° to 70°, with overnight lows between 16° and 39°. The average high for October is 57° with an average low of 27°. 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 Alta. See also: November | December | January.