S
M
T
W
T
F
S
26
65°
38°
27
73°
38°
28
73°
47°
29
69°
50°
30
53°
40°
1
55°
36°
2
49°
41°
3
55°
36°
4
63°
36°
5
70°
47°
6
48°
42°
7
52°
41°
8
53°
35°
9
64°
34°
10
62°
45°
11
54°
42°
12
55°
42°
13
53°
41°
14
53°
46°
15
67°
49°
16
75°
46°
17
74°
53°
18
75°
50°
19
85°
62°
20
76°
49°
21
59°
42°
22
69°
34°
23
71°
44°
24
56°
51°
25
68°
52°
26
85°
50°
27
72°
55°
28
65°
52°
29
62°
44°
30
61°
45°
31
67°
45°
1
65°
46°
2
67°
50°
3
72°
54°
4
79°
58°
5
78°
59°
6
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lacolle
Lacolle's May 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 44° and 59°. The average high for May is 69° 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 Lacolle. See also: June | July | August.
