S
M
T
W
T
F
S
26
54°
40°
27
68°
37°
28
57°
50°
29
54°
50°
30
54°
40°
1
55°
33°
2
48°
34°
3
59°
36°
4
75°
42°
5
77°
54°
6
63°
41°
7
60°
38°
8
58°
43°
9
62°
45°
10
71°
48°
11
56°
37°
12
61°
43°
13
64°
48°
14
69°
47°
15
73°
50°
16
70°
46°
17
65°
47°
18
68°
48°
19
73°
50°
20
66°
44°
21
67°
45°
22
67°
45°
23
68°
47°
24
68°
45°
25
69°
48°
26
72°
50°
27
70°
48°
28
72°
47°
29
70°
47°
30
74°
51°
31
79°
57°
1
75°
54°
2
76°
50°
3
78°
57°
4
80°
58°
5
80°
58°
6
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lock Haven
Lock Haven's May 2026 forecast shows daily high temperatures ranging from 56° to 81°, with overnight lows between 37° and 59°. The average high for May is 70° 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 May weather will actually feel in Lock Haven. See also: June | July | August.
