Lake Success, NY Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Success, NY in one place.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny. High near 77, with temperatures falling to around 73 in the afternoon. West wind 6 to 10 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Lake Success, 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: Apr 15, 2026 8:55 AM EDT.
The active forecast window currently covers Apr 17 to Apr 21, 2026 for Lake Success, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 8:55 AM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Success
Friday looks like the warmest upcoming period in Lake Success at 77 degrees F.
Monday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Monday at about 15 to 18 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 8:55 AM EDT
- Coverage
- 5 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
A chance of rain showers before 8pm. Partly cloudy. Low around 55, with temperatures rising to around 57 overnight. Chance of precipitation is 40%.
Partly sunny, with a high near 65.
A chance of rain showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Rain showers likely. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Rain showers likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
A chance of rain showers before 8am. Mostly sunny, with a high near 51. Chance of precipitation is 30%.
Partly cloudy, with a low around 37.
Sunny, with a high near 56.
Partly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Chance Showers And Thunderstorms
|
77°F |
6 to 10 mph
W
|
|
Friday Night
Apr 17
|
Chance Rain Showers then Partly Cloudy
|
55°F |
6 to 9 mph
N
|
|
Saturday
Apr 18
|
Partly Sunny
|
65°F |
6 to 10 mph
E
|
|
Saturday Night
Apr 18
|
Mostly Cloudy then Chance Rain Showers
|
51°F |
7 to 10 mph
SE
|
|
Sunday
Apr 19
|
Rain Showers Likely
|
62°F |
7 to 15 mph
SW
|
|
Sunday Night
Apr 19
|
Rain Showers Likely
|
41°F |
15 mph
NW
|
|
Monday
Apr 20
|
Chance Rain Showers then Mostly Sunny
|
51°F |
15 to 18 mph
NW
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
37°F |
9 to 17 mph
NW
|
|
Tuesday
Apr 21
|
Sunny
|
56°F |
9 to 13 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
47°F |
9 to 13 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Success.
