S
M
T
W
T
F
S
26
51°
36°
27
52°
26°
28
46°
25°
29
50°
29°
30
52°
32°
1
57°
32°
2
53°
30°
3
48°
26°
4
46°
23°
5
48°
24°
6
55°
30°
7
58°
32°
8
59°
33°
9
60°
34°
10
58°
35°
11
61°
36°
12
60°
35°
13
60°
28°
14
49°
27°
15
50°
26°
16
53°
29°
17
59°
33°
18
55°
30°
19
53°
33°
20
53°
29°
21
62°
31°
22
63°
37°
23
64°
38°
24
63°
35°
25
64°
36°
26
65°
38°
27
65°
39°
28
68°
35°
29
66°
38°
30
68°
41°
31
70°
40°
1
68°
39°
2
69°
42°
3
69°
40°
4
60°
43°
5
69°
41°
6
67°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pine Grove
Pine Grove's May 2026 forecast shows daily high temperatures ranging from 46° to 70°, with overnight lows between 23° and 43°. The average high for May is 59° with an average low of 34°. 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 Pine Grove. See also: June | July | August.