S
M
T
W
T
F
S
29
66°
26°
30
73°
59°
31
79°
64°
1
72°
46°
2
82°
45°
3
77°
64°
4
81°
52°
5
53°
35°
6
59°
25°
7
44°
24°
8
63°
41°
9
70°
47°
10
73°
49°
11
63°
49°
12
83°
61°
13
78°
63°
14
80°
56°
15
72°
44°
16
57°
40°
17
66°
45°
18
68°
46°
19
69°
42°
20
71°
48°
21
72°
50°
22
73°
50°
23
73°
48°
24
69°
44°
25
63°
40°
26
61°
44°
27
62°
39°
28
64°
44°
29
62°
39°
30
62°
40°
1
66°
43°
2
65°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lancaster
Lancaster's April 2026 forecast shows daily high temperatures ranging from 44° to 83°, with overnight lows between 24° and 63°. The average high for April is 67° with an average low of 44°. 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 Lancaster. See also: May | June | July.