S
M
T
W
T
F
S
31
63°
55°
1
66°
56°
2
64°
54°
3
64°
53°
4
61°
50°
5
58°
48°
6
61°
52°
7
60°
50°
8
58°
47°
9
58°
47°
10
N/A
11
61°
55°
12
62°
48°
13
64°
48°
14
71°
52°
15
66°
53°
16
66°
53°
17
65°
53°
18
63°
52°
19
65°
53°
20
64°
52°
21
65°
53°
22
66°
52°
23
60°
51°
24
62°
52°
25
65°
51°
26
64°
52°
27
63°
52°
28
62°
51°
29
62°
51°
30
63°
52°
1
62°
52°
2
62°
49°
3
63°
53°
4
63°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Roscommon
Roscommon's June 2026 forecast shows daily high temperatures ranging from 60° to 71°, with overnight lows between 48° and 55°. The average high for June is 64° with an average low of 52°. 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 Roscommon. See also: July | August | September.