S
M
T
W
T
F
S
31
75°
48°
1
71°
45°
2
67°
47°
3
70°
46°
4
69°
46°
5
63°
44°
6
63°
41°
7
66°
43°
8
68°
42°
9
64°
40°
10
63°
46°
11
65°
47°
12
63°
47°
13
67°
44°
14
74°
50°
15
74°
51°
16
75°
52°
17
74°
52°
18
75°
51°
19
68°
47°
20
65°
52°
21
75°
51°
22
72°
49°
23
71°
51°
24
75°
52°
25
74°
52°
26
76°
49°
27
75°
52°
28
75°
51°
29
74°
50°
30
75°
48°
1
76°
54°
2
76°
54°
3
78°
51°
4
76°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Brieux
St. Brieux's June 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 40° and 54°. The average high for June is 71° with an average low of 48°. 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. Brieux. See also: July | August | September.