S
M
T
W
T
F
S
29
31°
22°
30
31°
13°
31
46°
9°
1
55°
21°
2
36°
31°
3
44°
29°
4
53°
20°
5
39°
30°
6
51°
37°
7
45°
26°
8
43°
26°
9
51°
27°
10
61°
29°
11
66°
31°
12
49°
28°
13
40°
29°
14
47°
30°
15
49°
29°
16
50°
31°
17
51°
30°
18
54°
34°
19
55°
33°
20
47°
28°
21
49°
31°
22
50°
35°
23
49°
30°
24
51°
34°
25
57°
35°
26
60°
40°
27
62°
40°
28
64°
41°
29
64°
42°
30
65°
43°
1
66°
44°
2
67°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Rainier
Rainier's April 2026 forecast shows daily high temperatures ranging from 40° to 67°, with overnight lows between 26° and 44°. The average high for April is 54° 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 Rainier. See also: May | June | July.
