S
M
T
W
T
F
S
26
60°
42°
27
61°
42°
28
59°
44°
29
66°
43°
30
62°
45°
1
64°
42°
2
60°
46°
3
66°
45°
4
64°
43°
5
65°
51°
6
65°
52°
7
73°
51°
8
69°
51°
9
64°
47°
10
65°
44°
11
63°
44°
12
62°
44°
13
64°
46°
14
65°
49°
15
65°
47°
16
69°
55°
17
75°
48°
18
66°
46°
19
66°
48°
20
67°
54°
21
69°
58°
22
76°
59°
23
74°
55°
24
68°
52°
25
74°
59°
26
77°
58°
27
79°
54°
28
69°
51°
29
79°
55°
30
78°
55°
31
78°
58°
1
80°
57°
2
82°
56°
3
81°
59°
4
79°
61°
5
81°
61°
6
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Deer Grove
Deer Grove's May 2026 forecast shows daily high temperatures ranging from 59° to 82°, with overnight lows between 42° and 61°. The average high for May is 70° with an average low of 51°. 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 Deer Grove. See also: June | July | August.