Lake Success, NY Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Success, NY in one place.
Mostly cloudy. Low around 50, with temperatures rising to around 52 overnight. Northwest wind around 10 mph.
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: May 15, 2026 3:16 AM EDT.
The active forecast window currently covers May 15 to May 21, 2026 for Lake Success, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 15 to May 21, 2026
- Latest sync
- May 15, 2026 3:16 AM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Success
Sunday looks like the warmest upcoming period in Lake Success at 82 degrees F.
Overnight is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 17 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 15, 2026 3:16 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 sourceExtended Forecast
Mostly sunny. High near 66, with temperatures falling to around 63 in the afternoon. Northwest wind 7 to 10 mph.
Partly cloudy, with a low around 52. Southwest wind around 7 mph.
Sunny. High near 74, with temperatures falling to around 69 in the afternoon. Southwest wind 6 to 16 mph.
Partly cloudy, with a low around 58. Southwest wind 7 to 16 mph.
Mostly sunny. High near 82, with temperatures falling to around 76 in the afternoon.
Partly cloudy, with a low around 59.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 57.
Sunny, with a high near 77.
Mostly clear, with a low around 63.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 15
|
Mostly Cloudy
|
50°F |
10 mph
NW
|
|
Friday
May 15
|
Mostly Sunny
|
66°F |
7 to 10 mph
NW
|
|
Friday Night
May 15
|
Partly Cloudy
|
52°F |
7 mph
SW
|
|
Saturday
May 16
|
Sunny
|
74°F |
6 to 16 mph
SW
|
|
Saturday Night
May 16
|
Partly Cloudy
|
58°F |
7 to 16 mph
SW
|
|
Sunday
May 17
|
Mostly Sunny
|
82°F |
7 to 10 mph
SW
|
|
Sunday Night
May 17
|
Partly Cloudy
|
59°F |
2 to 9 mph
W
|
|
Monday
May 18
|
Mostly Sunny
|
73°F |
2 to 12 mph
E
|
|
Monday Night
May 18
|
Mostly Clear
|
57°F |
5 to 12 mph
S
|
|
Tuesday
May 19
|
Sunny
|
77°F |
5 to 17 mph
S
|
|
Tuesday Night
May 19
|
Mostly Clear
|
63°F |
8 to 17 mph
SW
|
|
Wednesday
May 20
|
Mostly Sunny then Chance Showers And Thunderstorms
|
81°F |
8 to 15 mph
SW
|
|
Wednesday Night
May 20
|
Chance Showers And Thunderstorms
|
61°F |
8 to 14 mph
W
|
|
Thursday
May 21
|
Chance Rain Showers
|
74°F |
8 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Success.
