S
M
T
W
T
F
S
26
54°
40°
27
72°
46°
28
58°
49°
29
59°
46°
30
60°
34°
1
57°
38°
2
54°
34°
3
57°
41°
4
64°
43°
5
67°
48°
6
68°
44°
7
64°
43°
8
61°
42°
9
60°
42°
10
63°
44°
11
66°
45°
12
68°
50°
13
68°
45°
14
65°
42°
15
64°
42°
16
64°
43°
17
65°
43°
18
66°
44°
19
74°
48°
20
68°
44°
21
67°
44°
22
67°
45°
23
68°
44°
24
69°
50°
25
77°
54°
26
72°
46°
27
68°
46°
28
69°
47°
29
71°
50°
30
78°
54°
31
79°
55°
1
79°
57°
2
80°
58°
3
81°
58°
4
81°
55°
5
76°
51°
6
73°
50°
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 54° to 81°, with overnight lows between 34° and 58°. The average high for May is 68° with an average low of 46°. 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.
