S
M
T
W
T
F
S
28
81°
64°
29
90°
77°
30
88°
77°
1
84°
70°
2
84°
69°
3
87°
70°
4
83°
65°
5
82°
64°
6
83°
66°
7
85°
63°
8
86°
63°
9
82°
64°
10
84°
64°
11
84°
63°
12
83°
66°
13
83°
63°
14
82°
61°
15
80°
60°
16
84°
64°
17
77°
59°
18
78°
64°
19
81°
65°
20
83°
64°
21
84°
65°
22
85°
66°
23
85°
65°
24
83°
65°
25
84°
64°
26
82°
65°
27
82°
65°
28
83°
66°
29
83°
64°
30
84°
65°
31
79°
63°
1
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Lucas
St. Lucas's July 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 58° and 70°. The average high for July is 83° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in St. Lucas. See also: August | September | October.
