S
M
T
W
T
F
S
31
61°
54°
1
68°
57°
2
63°
52°
3
63°
52°
4
61°
50°
5
59°
46°
6
57°
49°
7
61°
43°
8
58°
45°
9
57°
45°
10
57°
47°
11
58°
51°
12
57°
51°
13
59°
49°
14
60°
51°
15
64°
51°
16
61°
49°
17
63°
49°
18
64°
52°
19
60°
49°
20
59°
47°
21
60°
45°
22
59°
47°
23
59°
50°
24
60°
48°
25
60°
47°
26
59°
46°
27
59°
46°
28
60°
49°
29
63°
51°
30
61°
50°
1
60°
50°
2
60°
49°
3
61°
48°
4
61°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Letterkenny
Letterkenny's June 2026 forecast shows daily high temperatures ranging from 57° to 64°, with overnight lows between 43° and 52°. The average high for June is 60° 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 Letterkenny. See also: July | August | September.
