S
M
T
W
T
F
S
31
77°
56°
1
74°
54°
2
75°
55°
3
64°
54°
4
65°
53°
5
64°
52°
6
65°
51°
7
65°
51°
8
64°
50°
9
64°
55°
10
65°
55°
11
67°
54°
12
66°
54°
13
67°
51°
14
68°
54°
15
67°
55°
16
68°
55°
17
69°
54°
18
68°
53°
19
70°
55°
20
73°
57°
21
74°
58°
22
73°
57°
23
73°
57°
24
72°
58°
25
73°
57°
26
70°
57°
27
71°
56°
28
69°
57°
29
69°
56°
30
68°
53°
1
68°
53°
2
69°
54°
3
74°
55°
4
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Rennes
Rennes's June 2026 forecast shows daily high temperatures ranging from 64° to 77°, with overnight lows between 50° and 58°. The average high for June is 69° with an average low of 55°. 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 Rennes. See also: July | August | September.