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

Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Current conditions at

Farmingdale - Republic Airport (KFRG)

Lat: 40.73°NLon: 73.42°WElev: 72ft.

Mostly Cloudy

62°F

17°C

Humidity 93%
Wind Speed N 14 mph
Barometer 29.95 in (1014.2 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 21 Sep 4:53 am EDT
Extended Forecast for

Syosset NY

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 71. North wind 11 to 14 mph.

    High: 71 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 57. Northeast wind 8 to 11 mph.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 66. Northeast wind 14 to 16 mph.

    High: 66 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. Northeast wind around 16 mph, with gusts as high as 26 mph.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66. Northeast wind around 18 mph, with gusts as high as 30 mph.

    High: 66 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 65. Breezy.

    High: 65 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 71. North wind 11 to 14 mph.
Tonight
A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 57. Northeast wind 8 to 11 mph.
Tuesday
A 40 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 66. Northeast wind 14 to 16 mph.
Tuesday Night
Mostly cloudy, with a low around 54. Northeast wind around 16 mph, with gusts as high as 26 mph.
Wednesday
Mostly cloudy, with a high near 66. Northeast wind around 18 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Mostly cloudy, with a high near 66.
Thursday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 52.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 65. Breezy.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53. Breezy.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 67. Breezy.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 55. Breezy.
Sunday
Mostly sunny, with a high near 68.
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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:
3:38 am EDT Sep 21, 2026
Forecast Valid:
5am EDT Sep 21, 2026-6pm EDT Sep 27, 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