S
M
T
W
T
F
S
31
N/A
1
80°
60°
2
68°
53°
3
71°
58°
4
68°
50°
5
67°
52°
6
72°
53°
7
74°
56°
8
75°
55°
9
73°
53°
10
73°
53°
11
72°
54°
12
74°
54°
13
76°
56°
14
69°
51°
15
68°
49°
16
68°
50°
17
72°
55°
18
74°
54°
19
69°
52°
20
69°
56°
21
70°
54°
22
70°
58°
23
69°
58°
24
70°
57°
25
72°
58°
26
71°
55°
27
71°
54°
28
70°
51°
29
70°
51°
30
71°
56°
1
71°
52°
2
73°
54°
3
74°
55°
4
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Poissy
Poissy's June 2026 forecast shows daily high temperatures ranging from 67° to 80°, with overnight lows between 49° and 60°. The average high for June is 71° with an average low of 54°. 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 Poissy. See also: July | August | September.