S
M
T
W
T
F
S
27
68°
53°
28
68°
52°
29
67°
51°
30
67°
50°
1
68°
57°
2
69°
57°
3
68°
49°
4
69°
48°
5
64°
48°
6
63°
47°
7
64°
47°
8
63°
48°
9
63°
49°
10
64°
50°
11
63°
46°
12
62°
45°
13
62°
47°
14
68°
52°
15
67°
51°
16
Hist. Avg.
64°
47°
17
Hist. Avg.
64°
47°
18
Hist. Avg.
63°
46°
19
Hist. Avg.
63°
46°
20
Hist. Avg.
63°
46°
21
Hist. Avg.
62°
45°
22
Hist. Avg.
62°
45°
23
Hist. Avg.
62°
45°
24
Hist. Avg.
61°
44°
25
Hist. Avg.
61°
44°
26
Hist. Avg.
61°
44°
27
Hist. Avg.
60°
43°
28
Hist. Avg.
60°
43°
29
Hist. Avg.
60°
43°
30
Hist. Avg.
59°
42°
31
Hist. Avg.
59°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Lake Ronkonkoma
Lake Ronkonkoma's October 2026 forecast shows daily high temperatures ranging from 62° to 69°, with overnight lows between 45° and 57°. The average high for October is 66° with an average low of 50°. 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 Lake Ronkonkoma. See also: November | December | January.
