S
M
T
W
T
F
S
27
73°
47°
28
73°
45°
29
63°
44°
30
64°
41°
1
62°
44°
2
64°
43°
3
61°
43°
4
69°
36°
5
53°
36°
6
52°
38°
7
52°
33°
8
51°
29°
9
51°
30°
10
50°
28°
11
49°
26°
12
50°
29°
13
49°
26°
14
50°
35°
15
56°
29°
16
49°
25°
17
46°
26°
18
46°
25°
19
47°
26°
20
47°
31°
21
48°
36°
22
53°
35°
23
54°
33°
24
58°
26°
25
56°
20°
26
44°
26°
27
46°
21°
28
44°
25°
29
47°
26°
30
46°
22°
31
45°
25°
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 44° to 73°, with overnight lows between 20° and 47°. The average high for October is 53° with an average low of 32°. 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.
