S
M
T
W
T
F
S
29
72°
30°
30
69°
39°
31
64°
42°
1
57°
41°
2
49°
32°
3
47°
30°
4
58°
27°
5
64°
28°
6
70°
31°
7
70°
33°
8
66°
39°
9
69°
40°
10
70°
43°
11
62°
39°
12
60°
39°
13
53°
35°
14
57°
34°
15
61°
39°
16
65°
37°
17
60°
40°
18
63°
42°
19
61°
39°
20
58°
40°
21
60°
34°
22
54°
33°
23
53°
29°
24
53°
29°
25
54°
33°
26
55°
33°
27
55°
32°
28
54°
31°
29
54°
31°
30
55°
30°
1
56°
32°
2
57°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lewiston
Lewiston's April 2026 forecast shows daily high temperatures ranging from 53° to 70°, with overnight lows between 29° and 43°. The average high for April is 59° with an average low of 35°. 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 Lewiston. See also: May | June | July.
