S
M
T
W
T
F
S
29
28°
-9°
30
29°
-8°
31
27°
-4°
1
27°
9°
2
29°
-4°
3
30°
-3°
4
34°
-3°
5
36°
9°
6
34°
9°
7
38°
20°
8
40°
28°
9
40°
28°
10
36°
24°
11
38°
30°
12
34°
26°
13
33°
26°
14
34°
16°
15
35°
19°
16
38°
27°
17
39°
27°
18
34°
27°
19
34°
25°
20
37°
25°
21
29°
17°
22
36°
12°
23
43°
30°
24
46°
36°
25
46°
34°
26
N/A
27
44°
35°
28
39°
25°
29
41°
23°
30
43°
28°
1
44°
31°
2
45°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Lagoon
Lagoon's April 2026 forecast shows daily high temperatures ranging from 39° to 45°, with overnight lows between 23° and 35°. The average high for April is 43° with an average low of 29°. 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 Lagoon. See also: May | June | July.