S
M
T
W
T
F
S
26
60°
40°
27
59°
35°
28
61°
40°
29
61°
36°
30
60°
35°
1
63°
38°
2
62°
38°
3
62°
37°
4
66°
42°
5
73°
45°
6
72°
40°
7
69°
47°
8
75°
50°
9
76°
50°
10
76°
45°
11
65°
41°
12
64°
41°
13
66°
47°
14
66°
47°
15
67°
48°
16
65°
48°
17
66°
45°
18
76°
44°
19
70°
43°
20
70°
45°
21
69°
44°
22
69°
43°
23
68°
44°
24
70°
46°
25
70°
48°
26
71°
52°
27
72°
46°
28
71°
48°
29
73°
58°
30
77°
48°
31
77°
49°
1
72°
55°
2
74°
50°
3
78°
49°
4
75°
57°
5
82°
50°
6
75°
51°
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 59° to 82°, with overnight lows between 35° and 58°. The average high for May is 69° with an average low of 45°. 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.
