S
M
T
W
T
F
S
27
N/A
28
71°
55°
29
75°
55°
30
78°
51°
1
84°
58°
2
76°
58°
3
72°
51°
4
74°
50°
5
70°
44°
6
68°
39°
7
75°
38°
8
75°
42°
9
75°
50°
10
71°
56°
11
75°
62°
12
70°
58°
13
79°
53°
14
70°
48°
15
76°
57°
16
77°
50°
17
62°
42°
18
60°
40°
19
63°
40°
20
64°
42°
21
66°
39°
22
61°
43°
23
58°
33°
24
58°
33°
25
61°
36°
26
65°
40°
27
65°
32°
28
56°
30°
29
55°
30°
30
56°
33°
31
63°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Grantsville
Grantsville's October 2026 forecast shows daily high temperatures ranging from 55° to 79°, with overnight lows between 30° and 62°. The average high for October is 66° with an average low of 43°. 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 Grantsville. See also: November | December | January.
