S
M
T
W
T
F
S
26
64°
40°
27
68°
44°
28
64°
44°
29
64°
43°
30
61°
39°
1
62°
40°
2
61°
42°
3
62°
37°
4
65°
46°
5
66°
47°
6
63°
44°
7
65°
41°
8
68°
41°
9
64°
46°
10
65°
50°
11
74°
49°
12
71°
50°
13
67°
51°
14
76°
48°
15
67°
43°
16
67°
43°
17
69°
51°
18
77°
54°
19
76°
45°
20
68°
44°
21
66°
44°
22
68°
47°
23
68°
45°
24
73°
53°
25
78°
55°
26
78°
55°
27
75°
54°
28
70°
55°
29
71°
54°
30
72°
55°
31
71°
56°
1
82°
57°
2
78°
55°
3
77°
57°
4
78°
55°
5
79°
56°
6
82°
50°
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 82°, with overnight lows between 37° and 57°. The average high for May is 70° with an average low of 48°. 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.
