S
M
T
W
T
F
S
27
70°
39°
28
N/A
29
81°
43°
30
79°
37°
1
64°
32°
2
66°
30°
3
70°
34°
4
70°
25°
5
84°
41°
6
77°
36°
7
73°
32°
8
73°
30°
9
81°
36°
10
77°
36°
11
48°
41°
12
45°
39°
13
45°
27°
14
61°
25°
15
48°
39°
16
55°
23°
17
79°
32°
18
64°
25°
19
68°
19°
20
73°
28°
21
68°
28°
22
79°
41°
23
79°
48°
24
54°
19°
25
50°
16°
26
40°
31°
27
44°
31°
28
60°
28°
29
57°
33°
30
47°
42°
31
55°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Glen Ullin
Glen Ullin's October 2026 forecast shows daily high temperatures ranging from 40° to 60°, with overnight lows between 28° and 42°. The average high for October is 51° 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 Glen Ullin. See also: November | December | January.
