S
M
T
W
T
F
S
29
45°
20°
30
64°
31°
31
55°
38°
1
56°
31°
2
40°
31°
3
66°
32°
4
59°
36°
5
44°
34°
6
37°
29°
7
35°
15°
8
45°
24°
9
58°
39°
10
56°
36°
11
47°
28°
12
59°
45°
13
66°
57°
14
58°
39°
15
56°
36°
16
53°
36°
17
54°
40°
18
53°
40°
19
57°
35°
20
55°
33°
21
60°
35°
22
59°
40°
23
51°
40°
24
60°
37°
25
59°
32°
26
51°
31°
27
52°
32°
28
53°
32°
29
53°
33°
30
54°
32°
1
54°
35°
2
56°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Calais
Calais's April 2026 forecast shows daily high temperatures ranging from 35° to 66°, with overnight lows between 15° and 57°. The average high for April is 54° 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 Calais. See also: May | June | July.
