Lake Ronkonkoma, NY Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Ronkonkoma, NY in one place.
Sunny, with a high near 55. Northeast wind 8 to 17 mph.
Local Weather Overview
This forecast page for Lake 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 17, 2026 3:25 PM EDT.
The active forecast window currently covers Oct 18 to Oct 23, 2026 for Lake Ronkonkoma, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 18 to Oct 23, 2026
- Latest sync
- Oct 17, 2026 3:25 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Ronkonkoma
Tuesday looks like the warmest upcoming period in Lake Ronkonkoma at 63 degrees F.
Sunday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Tuesday Night at about 17 to 30 mph NE.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 17, 2026 3:25 PM EDT
- Coverage
- 6 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 sourceExtended Forecast
Mostly clear, with a low around 50. Northeast wind 7 to 15 mph.
Mostly sunny, with a high near 59. Northeast wind around 17 mph.
Mostly cloudy, with a low around 52.
Partly sunny, with a high near 63.
Partly cloudy, with a low around 53.
Mostly sunny, with a high near 60.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 50.
A slight chance of rain showers. Mostly cloudy, with a high near 60.
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 53.
Mostly sunny, with a high near 62.
Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Oct 18
|
Sunny
|
55°F |
8 to 17 mph
NE
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
50°F |
7 to 15 mph
NE
|
|
Monday
Oct 19
|
Mostly Sunny
|
59°F |
17 mph
NE
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
52°F |
16 to 25 mph
NE
|
|
Tuesday
Oct 20
|
Partly Sunny
|
63°F |
17 to 25 mph
N
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
53°F |
17 to 30 mph
NE
|
|
Wednesday
Oct 21
|
Mostly Sunny
|
60°F |
23 to 30 mph
NE
|
|
Wednesday Night
Oct 21
|
Mostly Cloudy then Slight Chance Rain Showers
|
50°F |
24 to 28 mph
NE
|
|
Thursday
Oct 22
|
Slight Chance Rain Showers
|
60°F |
18 to 28 mph
NE
|
|
Thursday Night
Oct 22
|
Slight Chance Rain Showers
|
53°F |
15 to 20 mph
NE
|
|
Friday
Oct 23
|
Mostly Sunny
|
62°F |
15 to 20 mph
NE
|
|
Friday Night
Oct 23
|
Partly Cloudy
|
52°F |
16 to 25 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Ronkonkoma.