S
M
T
W
T
F
S
31
66°
54°
1
77°
53°
2
80°
55°
3
81°
60°
4
78°
63°
5
78°
67°
6
82°
62°
7
77°
61°
8
84°
62°
9
83°
61°
10
83°
60°
11
82°
60°
12
76°
57°
13
79°
56°
14
80°
58°
15
73°
52°
16
72°
52°
17
73°
53°
18
74°
57°
19
74°
55°
20
76°
60°
21
75°
62°
22
76°
61°
23
79°
58°
24
77°
57°
25
78°
63°
26
83°
60°
27
78°
59°
28
77°
60°
29
76°
57°
30
77°
61°
1
79°
64°
2
80°
64°
3
81°
63°
4
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Lucas
St. Lucas's June 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 52° and 67°. The average high for June is 78° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in St. Lucas. See also: July | August | September.