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
80°
52°
21
65°
46°
22
64°
48°
23
53°
49°
24
63°
56°
25
74°
56°
26
80°
56°
27
78°
54°
28
79°
55°
29
79°
55°
30
75°
56°
31
77°
58°
1
78°
56°
2
79°
53°
3
80°
57°
4
81°
58°
5
81°
59°
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 53° to 81°, with overnight lows between 46° and 59°. The average high for May is 75° with an average low of 55°. 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.
