S
M
T
W
T
F
S
29
55°
34°
30
48°
31°
31
56°
27°
1
40°
30°
2
51°
34°
3
56°
34°
4
61°
33°
5
65°
35°
6
69°
42°
7
61°
37°
8
60°
34°
9
59°
32°
10
61°
33°
11
61°
36°
12
65°
39°
13
66°
40°
14
65°
39°
15
59°
35°
16
55°
38°
17
62°
40°
18
63°
41°
19
56°
37°
20
54°
34°
21
53°
33°
22
53°
33°
23
54°
34°
24
54°
33°
25
55°
33°
26
56°
36°
27
55°
34°
28
57°
34°
29
61°
39°
30
62°
40°
1
63°
42°
2
66°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Castlegar
Castlegar's April 2026 forecast shows daily high temperatures ranging from 51° to 69°, with overnight lows between 32° and 42°. The average high for April is 59° with an average low of 36°. 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 Castlegar. See also: May | June | July.
