S
M
T
W
T
F
S
29
64°
30°
30
55°
30°
31
36°
23°
1
30°
27°
2
34°
30°
3
30°
27°
4
41°
23°
5
45°
21°
6
34°
21°
7
55°
21°
8
43°
28°
9
46°
27°
10
61°
21°
11
68°
39°
12
73°
43°
13
43°
39°
14
64°
39°
15
68°
36°
16
61°
32°
17
34°
19°
18
48°
14°
19
52°
14°
20
81°
30°
21
81°
28°
22
84°
39°
23
61°
27°
24
50°
23°
25
48°
16°
26
57°
16°
27
46°
28°
28
N/A
29
54°
33°
30
55°
30°
1
66°
37°
2
71°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Glen Ullin
Glen Ullin's April 2026 forecast shows daily high temperatures ranging from 54° to 71°, with overnight lows between 30° and 37°. The average high for April is 62° 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 April weather will actually feel in Glen Ullin. See also: May | June | July.
