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
60°
40°
4
74°
52°
5
75°
54°
6
62°
41°
7
53°
38°
8
58°
38°
9
59°
39°
10
62°
46°
11
63°
43°
12
67°
44°
13
64°
46°
14
66°
47°
15
69°
45°
16
68°
47°
17
75°
53°
18
76°
53°
19
75°
50°
20
76°
53°
21
77°
52°
22
74°
46°
23
67°
44°
24
67°
46°
25
68°
47°
26
69°
46°
27
69°
46°
28
70°
47°
29
69°
46°
30
69°
48°
31
71°
57°
1
72°
52°
2
73°
49°
3
72°
53°
4
75°
55°
5
73°
52°
6
78°
58°
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 53° to 78°, with overnight lows between 38° and 58°. The average high for May is 69° 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.
