S
M
T
W
T
F
S
26
61°
43°
27
62°
39°
28
62°
40°
29
61°
42°
30
62°
40°
1
61°
38°
2
63°
39°
3
62°
40°
4
61°
38°
5
61°
38°
6
63°
39°
7
66°
46°
8
69°
43°
9
67°
48°
10
65°
41°
11
64°
40°
12
65°
40°
13
64°
42°
14
63°
41°
15
65°
42°
16
66°
43°
17
67°
50°
18
70°
43°
19
66°
43°
20
67°
44°
21
69°
52°
22
68°
52°
23
69°
55°
24
77°
56°
25
78°
55°
26
78°
55°
27
79°
57°
28
79°
55°
29
81°
56°
30
81°
54°
31
76°
53°
1
71°
51°
2
72°
53°
3
77°
57°
4
76°
58°
5
75°
58°
6
74°
57°
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 61° to 81°, with overnight lows between 38° and 58°. The average high for May is 69° with an average low of 47°. 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.
