S
M
T
W
T
F
S
27
55°
30°
28
66°
37°
29
72°
34°
30
66°
45°
1
59°
45°
2
75°
45°
3
64°
48°
4
75°
39°
5
82°
46°
6
75°
52°
7
73°
43°
8
75°
37°
9
81°
46°
10
59°
32°
11
32°
28°
12
34°
25°
13
54°
30°
14
61°
35°
15
56°
32°
16
70°
44°
17
75°
40°
18
64°
40°
19
72°
43°
20
62°
34°
21
54°
35°
22
57°
35°
23
62°
37°
24
59°
34°
25
58°
35°
26
56°
28°
27
59°
31°
28
60°
30°
29
55°
27°
30
52°
30°
31
58°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Roundup
Roundup's October 2026 forecast shows daily high temperatures ranging from 52° to 75°, with overnight lows between 27° and 44°. The average high for October is 60° 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 Roundup. See also: November | December | January.
