S
M
T
W
T
F
S
29
62°
26°
30
71°
45°
31
81°
51°
1
82°
59°
2
59°
47°
3
73°
46°
4
84°
52°
5
72°
46°
6
57°
40°
7
50°
33°
8
53°
28°
9
62°
29°
10
76°
35°
11
67°
44°
12
72°
55°
13
81°
55°
14
84°
62°
15
89°
62°
16
91°
63°
17
80°
54°
18
85°
60°
19
81°
42°
20
62°
39°
21
65°
43°
22
73°
48°
23
73°
50°
24
75°
50°
25
68°
43°
26
61°
41°
27
60°
39°
28
63°
45°
29
64°
42°
30
69°
40°
1
63°
41°
2
64°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mercersburg
Mercersburg's April 2026 forecast shows daily high temperatures ranging from 60° to 91°, with overnight lows between 39° and 63°. The average high for April is 73° with an average low of 48°. 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 Mercersburg. See also: May | June | July.
