S
M
T
W
T
F
S
26
65°
32°
27
73°
34°
28
69°
37°
29
67°
46°
30
53°
40°
1
49°
27°
2
50°
25°
3
52°
27°
4
52°
41°
5
65°
44°
6
52°
39°
7
56°
40°
8
51°
37°
9
53°
39°
10
55°
40°
11
53°
38°
12
56°
36°
13
58°
41°
14
59°
43°
15
56°
42°
16
58°
43°
17
60°
51°
18
60°
44°
19
61°
40°
20
65°
47°
21
67°
47°
22
65°
48°
23
60°
44°
24
64°
43°
25
59°
40°
26
58°
41°
27
61°
43°
28
60°
41°
29
60°
42°
30
61°
42°
31
62°
48°
1
62°
42°
2
61°
43°
3
63°
50°
4
64°
49°
5
64°
48°
6
67°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in La Plaine
La Plaine's May 2026 forecast shows daily high temperatures ranging from 51° to 67°, with overnight lows between 36° and 51°. The average high for May is 60° with an average low of 43°. 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 La Plaine. See also: June | July | August.