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
65°
48°
7
59°
41°
8
59°
37°
9
61°
46°
10
64°
48°
11
61°
39°
12
68°
34°
13
64°
47°
14
48°
44°
15
70°
45°
16
81°
61°
17
83°
55°
18
91°
64°
19
91°
62°
20
82°
54°
21
70°
46°
22
68°
48°
23
72°
51°
24
77°
51°
25
76°
55°
26
77°
58°
27
82°
51°
28
73°
55°
29
70°
55°
30
71°
56°
31
73°
52°
1
70°
49°
2
71°
48°
3
70°
48°
4
71°
49°
5
74°
58°
6
80°
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 68° to 91°, with overnight lows between 45° and 64°. The average high for May is 76° with an average low of 53°. 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.
