S
M
T
W
T
F
S
29
24°
8°
30
11°
-7°
31
23°
-8°
1
35°
11°
2
37°
5°
3
37°
3°
4
41°
11°
5
11°
-6°
6
23°
-9°
7
27°
3°
8
28°
-1°
9
37°
3°
10
20°
-5°
11
32°
9°
12
25°
9°
13
28°
-7°
14
14°
-5°
15
11°
-3°
16
20°
1°
17
23°
1°
18
27°
2°
19
31°
14°
20
45°
26°
21
40°
16°
22
42°
19°
23
38°
17°
24
36°
16°
25
36°
17°
26
37°
17°
27
54°
34°
28
35°
12°
29
35°
12°
30
33°
11°
1
35°
16°
2
47°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Gillam
Gillam's April 2026 forecast shows daily high temperatures ranging from 11° to 54°, with overnight lows between -5° and 34°. The average high for April is 34° with an average low of 13°. 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 Gillam. See also: May | June | July.