Ronkonkoma, NY Weather Forecast

Local 7-day forecast

65°
F

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Ronkonkoma, NY in one place.

Tuesday, October 20, 2026
Wind: 17 to 22 mph NE
Today

Sunny. High near 65, with temperatures falling to around 63 in the afternoon. Northeast wind 17 to 22 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Ronkonkoma, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 20, 2026 9:39 AM EDT.

The active forecast window currently covers Oct 20 to Oct 26, 2026 for Ronkonkoma, NY.

Page Snapshot

Page focus
city weather
Forecast window
Oct 20 to Oct 26, 2026
Latest sync
Oct 20, 2026 9:39 AM EDT
Forecast office
OKX
Source
NOAA / NWS
Next High
65°F
Today
Next Low
52°F
Tonight
Rain Outlook
0
Periods mentioning precipitation
Windiest
17 to 26 mph
Thursday Night

Daily Outlook

Today
Oct 20
Sunny
65 °F
/ 52°F
Wind 17 to 22 mph
Wed
Oct 21
Mostly Sunny
59 °F
/ 51°F
Wind 20 to 25 mph
Thu
Oct 22
Mostly Sunny
64 °F
/ 48°F
Wind 16 to 23 mph
Fri
Oct 23
Sunny
56 °F
/ 49°F
Wind 16 to 25 mph
Sat
Oct 24
Sunny
57 °F
/ 49°F
Wind 8 to 15 mph
Sun
Oct 25
Sunny
60 °F
/ 55°F
Wind 9 mph
Mon
Oct 26
Mostly Sunny
65 °F
/ 55°F
Wind 14 mph

This Week in Ronkonkoma

Today looks like the warmest upcoming period in Ronkonkoma at 65 degrees F.

Thursday Night is the coolest period ahead with temperatures near 48 degrees F.

The strongest winds are forecast for Thursday Night at about 17 to 26 mph N.

The forecast from Oct 20 through Oct 26 stays mostly dry.

Forecast Details

Last updated
Oct 20, 2026 9:39 AM EDT
Coverage
7 days
Time zone
America/New_York
Forecast office
OKX
Radar station
KOKX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tonight
Oct 20
52°F
Partly Cloudy
17 to 25 mph NE

Partly cloudy, with a low around 52. Northeast wind 17 to 25 mph.

Wednesday
Oct 21
59°F
Mostly Sunny
20 to 25 mph NE

Mostly sunny. High near 59, with temperatures falling to around 57 in the afternoon. Northeast wind 20 to 25 mph.

Wednesday Night
Oct 21
51°F
Mostly Cloudy
20 to 24 mph N

Mostly cloudy, with a low around 51. North wind 20 to 24 mph.

Thursday
Oct 22
64°F
Mostly Sunny
16 to 23 mph N

Mostly sunny. High near 64, with temperatures falling to around 62 in the afternoon. North wind 16 to 23 mph.

Thursday Night
Oct 22
48°F
Mostly Clear
17 to 26 mph N

Mostly clear. Low around 48, with temperatures rising to around 50 overnight.

Friday
Oct 23
56°F
Sunny
16 to 25 mph N

Sunny, with a high near 56.

Friday Night
Oct 23
49°F
Mostly Clear
16 mph N

Mostly clear, with a low around 49.

Saturday
Oct 24
57°F
Sunny
8 to 15 mph NW

Sunny, with a high near 57.

Saturday Night
Oct 24
49°F
Mostly Clear
9 mph NW

Mostly clear, with a low around 49.

Sunday
Oct 25
60°F
Sunny
9 mph W

Sunny, with a high near 60.

Sunday Night
Oct 25
55°F
Mostly Clear
8 to 13 mph SW

Mostly clear, with a low around 55.

Monday
Oct 26
65°F
Mostly Sunny
14 mph W

Mostly sunny, with a high near 65.

Monday Night
Oct 26
55°F
Partly Cloudy
12 to 15 mph W

Partly cloudy, with a low around 55.

Detailed Forecast

Period Conditions Temp Wind
Today
Oct 20
Sunny
65°F
17 to 22 mph
NE
Tonight
Oct 20
Partly Cloudy
52°F
17 to 25 mph
NE
Wednesday
Oct 21
Mostly Sunny
59°F
20 to 25 mph
NE
Wednesday Night
Oct 21
Mostly Cloudy
51°F
20 to 24 mph
N
Thursday
Oct 22
Mostly Sunny
64°F
16 to 23 mph
N
Thursday Night
Oct 22
Mostly Clear
48°F
17 to 26 mph
N
Friday
Oct 23
Sunny
56°F
16 to 25 mph
N
Friday Night
Oct 23
Mostly Clear
49°F
16 mph
N
Saturday
Oct 24
Sunny
57°F
8 to 15 mph
NW
Saturday Night
Oct 24
Mostly Clear
49°F
9 mph
NW
Sunday
Oct 25
Sunny
60°F
9 mph
W
Sunday Night
Oct 25
Mostly Clear
55°F
8 to 13 mph
SW
Monday
Oct 26
Mostly Sunny
65°F
14 mph
W
Monday Night
Oct 26
Partly Cloudy
55°F
12 to 15 mph
W
Petit Trianon  Lake Ronkonkoma  NY
Petit Trianon Lake Ronkonkoma NY image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.