National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

New York, La Guardia Airport (KLGA)

Lat: 40.78°NLon: 73.88°WElev: 20ft.

Mostly Cloudy

79°F

26°C

Humidity 65%
Wind Speed S 10 mph
Barometer 30.23 in (1023.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Sep 10:51 am EDT
Extended Forecast for

Lake Success NY

  • Today

    Today: Scattered showers and thunderstorms between 2pm and 4pm, then isolated showers after 4pm. Partly sunny, with a high near 81. South wind 8 to 11 mph. Chance of precipitation is 40%.

    High: 81 °F

    Scattered
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 9 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 80. North wind 9 to 11 mph.

    High: 80 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. North wind around 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Northeast wind 7 to 10 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 72. Chance of precipitation is 90%.

    High: 72 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms between 2pm and 4pm, then isolated showers after 4pm. Partly sunny, with a high near 81. South wind 8 to 11 mph. Chance of precipitation is 40%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 9 mph. Chance of precipitation is 40%.
Friday
Partly sunny, then gradually becoming sunny, with a high near 80. North wind 9 to 11 mph.
Friday Night
Partly cloudy, with a low around 60. North wind around 10 mph.
Saturday
Mostly sunny, with a high near 71. Northeast wind 7 to 10 mph.
Saturday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 61.
Sunday
Showers, mainly after 8am. High near 72. Chance of precipitation is 90%.
Sunday Night
Showers likely before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 69.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Success NY
 40.77°N 73.71°W (Elev. 197 ft)
Last Update:
11:11 am EDT Sep 17, 2026
Forecast Valid:
11am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation