S
M
T
W
T
F
S
26
59°
41°
27
69°
38°
28
62°
40°
29
65°
48°
30
63°
47°
1
64°
42°
2
61°
46°
3
60°
43°
4
72°
42°
5
82°
54°
6
68°
55°
7
65°
49°
8
66°
44°
9
64°
48°
10
77°
47°
11
61°
47°
12
66°
40°
13
74°
49°
14
65°
51°
15
67°
50°
16
82°
61°
17
91°
64°
18
96°
68°
19
97°
69°
20
92°
55°
21
69°
47°
22
62°
48°
23
66°
51°
24
68°
55°
25
72°
55°
26
76°
55°
27
78°
55°
28
77°
58°
29
78°
54°
30
79°
58°
31
78°
57°
1
78°
58°
2
76°
57°
3
72°
59°
4
74°
59°
5
77°
57°
6
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mercerville
Mercerville's May 2026 forecast shows daily high temperatures ranging from 62° to 97°, with overnight lows between 47° and 69°. The average high for May is 78° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Mercerville. See also: June | July | August.
