S
M
T
W
T
F
S
27
88°
66°
28
88°
65°
29
87°
64°
30
87°
65°
1
86°
65°
2
86°
64°
3
85°
65°
4
85°
64°
5
84°
63°
6
85°
63°
7
85°
62°
8
84°
63°
9
84°
63°
10
83°
62°
11
83°
62°
12
75°
59°
13
81°
60°
14
84°
59°
15
83°
60°
16
83°
55°
17
78°
49°
18
76°
48°
19
70°
48°
20
68°
47°
21
68°
47°
22
69°
48°
23
70°
48°
24
70°
53°
25
68°
44°
26
78°
42°
27
68°
43°
28
64°
46°
29
66°
46°
30
66°
44°
31
65°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Dublin
Dublin's October 2026 forecast shows daily high temperatures ranging from 64° to 88°, with overnight lows between 42° and 66°. The average high for October is 78° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Dublin. See also: November | December | January.