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

Hazardous Weather Conditions

Current conditions at

Farmingdale - Republic Airport (KFRG)

Lat: 40.73°NLon: 73.42°WElev: 72ft.

A Few Clouds

89°F

32°C

Humidity 50%
Wind Speed Vrbl 6 G 17 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 9 Aug 1:53 pm EDT
Extended Forecast for

Syosset NY

Heat Advisory until August 9, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 9, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 71. Northwest wind around 5 mph becoming light and variable in the evening.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 90. Heat index values as high as 97. Light and variable wind becoming southwest 6 to 11 mph in the morning.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Southwest wind around 8 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. Northwest wind around 9 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91. Heat index values as high as 99. West wind around 9 mph.
Tonight
Mostly clear, with a low around 71. Northwest wind around 5 mph becoming light and variable in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 90. Heat index values as high as 97. Light and variable wind becoming southwest 6 to 11 mph in the morning.
Monday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Southwest wind around 8 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 89. Northwest wind around 9 mph.
Tuesday Night
Mostly cloudy, with a low around 69.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
A chance of showers between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.
Thursday
A chance of thunderstorms before 8am. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Syosset NY
 40.81°N 73.5°W (Elev. 197 ft)
Last Update:
2:58 am EDT Aug 9, 2026
Forecast Valid:
2pm EDT Aug 9, 2026-6pm EDT Aug 15, 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