S
M
T
W
T
F
S
26
59°
35°
27
60°
36°
28
63°
43°
29
63°
41°
30
66°
40°
1
74°
46°
2
76°
51°
3
74°
55°
4
67°
54°
5
55°
48°
6
53°
47°
7
60°
43°
8
62°
42°
9
67°
42°
10
67°
45°
11
59°
42°
12
55°
41°
13
55°
45°
14
50°
40°
15
56°
38°
16
57°
41°
17
58°
44°
18
59°
46°
19
62°
42°
20
64°
54°
21
68°
53°
22
76°
51°
23
83°
55°
24
76°
58°
25
82°
50°
26
86°
55°
27
N/A
28
76°
54°
29
84°
55°
30
79°
55°
31
74°
55°
1
75°
61°
2
73°
56°
3
70°
55°
4
68°
56°
5
69°
53°
6
71°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Gronau
Gronau's May 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 53° and 61°. The average high for May is 74° 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 Gronau. See also: June | July | August.
