S
M
T
W
T
F
S
31
73°
43°
1
68°
50°
2
67°
48°
3
73°
55°
4
76°
57°
5
78°
61°
6
78°
59°
7
77°
59°
8
76°
58°
9
75°
59°
10
76°
59°
11
76°
58°
12
78°
56°
13
75°
57°
14
77°
52°
15
70°
50°
16
67°
49°
17
69°
49°
18
70°
50°
19
70°
50°
20
71°
54°
21
72°
57°
22
71°
57°
23
72°
58°
24
72°
55°
25
73°
51°
26
72°
58°
27
77°
59°
28
74°
55°
29
72°
52°
30
73°
53°
1
71°
52°
2
72°
52°
3
74°
59°
4
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Donegal
Donegal's June 2026 forecast shows daily high temperatures ranging from 67° to 78°, with overnight lows between 48° and 61°. The average high for June is 73° 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 Donegal. See also: July | August | September.