S
M
T
W
T
F
S
29
58°
32°
30
50°
26°
31
54°
26°
1
44°
31°
2
55°
39°
3
59°
34°
4
65°
33°
5
70°
36°
6
74°
39°
7
62°
43°
8
65°
35°
9
68°
39°
10
68°
34°
11
60°
46°
12
66°
40°
13
70°
44°
14
51°
38°
15
56°
31°
16
58°
32°
17
60°
33°
18
64°
38°
19
68°
44°
20
75°
48°
21
74°
50°
22
67°
43°
23
65°
44°
24
71°
47°
25
73°
48°
26
72°
49°
27
67°
41°
28
67°
41°
29
69°
44°
30
70°
47°
1
63°
47°
2
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Grand Coulee
Grand Coulee's April 2026 forecast shows daily high temperatures ranging from 51° to 75°, with overnight lows between 31° and 50°. The average high for April is 66° with an average low of 43°. 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 Grand Coulee. See also: May | June | July.
