S
M
T
W
T
F
S
26
73°
48°
27
71°
50°
28
63°
46°
29
57°
42°
30
56°
37°
1
55°
33°
2
62°
31°
3
75°
48°
4
81°
43°
5
57°
39°
6
50°
33°
7
63°
32°
8
74°
34°
9
68°
42°
10
67°
36°
11
65°
35°
12
82°
46°
13
68°
46°
14
75°
41°
15
85°
58°
16
83°
62°
17
66°
58°
18
77°
61°
19
67°
50°
20
64°
45°
21
58°
48°
22
61°
49°
23
71°
54°
24
81°
49°
25
86°
60°
26
88°
62°
27
88°
62°
28
82°
63°
29
84°
61°
30
82°
58°
31
82°
61°
1
83°
55°
2
86°
58°
3
88°
64°
4
88°
64°
5
85°
63°
6
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Garnavillo
Garnavillo's May 2026 forecast shows daily high temperatures ranging from 80° to 88°, with overnight lows between 55° and 64°. The average high for May is 84° with an average low of 60°. 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 Garnavillo. See also: June | July | August.
