S
M
T
W
T
F
S
26
70°
46°
27
70°
46°
28
59°
45°
29
55°
43°
30
54°
36°
1
52°
36°
2
61°
32°
3
72°
52°
4
75°
46°
5
54°
37°
6
46°
34°
7
61°
32°
8
72°
41°
9
64°
45°
10
64°
37°
11
64°
37°
12
79°
48°
13
68°
48°
14
75°
43°
15
86°
55°
16
81°
59°
17
68°
57°
18
75°
61°
19
64°
45°
20
59°
41°
21
55°
48°
22
61°
48°
23
73°
50°
24
80°
58°
25
83°
60°
26
84°
60°
27
82°
58°
28
78°
54°
29
75°
49°
30
68°
48°
31
69°
53°
1
74°
54°
2
73°
54°
3
75°
56°
4
76°
56°
5
74°
53°
6
69°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Spring Grove
Spring Grove's May 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 48° and 60°. The average high for May is 76° 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 Spring Grove. See also: June | July | August.