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
68°
46°
16
75°
46°
17
86°
63°
18
90°
60°
19
84°
64°
20
79°
57°
21
61°
51°
22
63°
46°
23
49°
46°
24
59°
49°
25
75°
55°
26
77°
54°
27
80°
55°
28
73°
46°
29
79°
51°
30
69°
43°
31
75°
50°
1
69°
47°
2
73°
49°
3
78°
52°
4
80°
56°
5
81°
58°
6
78°
55°
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 69° to 81°, with overnight lows between 43° and 58°. The average high for May is 76° with an average low of 51°. 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.
