S
M
T
W
T
F
S
27
58°
51°
28
60°
47°
29
66°
50°
30
64°
55°
1
60°
50°
2
60°
52°
3
63°
49°
4
62°
51°
5
61°
53°
6
59°
41°
7
55°
41°
8
57°
42°
9
58°
50°
10
54°
49°
11
55°
46°
12
64°
50°
13
N/A
14
63°
50°
15
56°
45°
16
54°
45°
17
54°
38°
18
52°
45°
19
56°
48°
20
56°
49°
21
57°
48°
22
56°
50°
23
56°
47°
24
54°
47°
25
55°
48°
26
53°
47°
27
57°
45°
28
52°
45°
29
51°
46°
30
52°
47°
31
55°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Portrush
Portrush's October 2026 forecast shows daily high temperatures ranging from 51° to 63°, with overnight lows between 38° and 50°. The average high for October is 55° with an average low of 46°. 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 Portrush. See also: November | December | January.