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

White Plains - Westchester County Airport (KHPN)

Lat: 41.06°NLon: 73.7°WElev: 367ft.

Fair

77°F

25°C

Humidity 48%
Wind Speed Vrbl 3 mph
Barometer 30.20 in (1022.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 15 Aug 11:56 am EDT
Extended Forecast for

Chappaqua NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. Light north wind.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 5pm. Increasing clouds, with a high near 80. Calm wind becoming south 5 to 9 mph in the morning.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Low around 65. Southeast wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 8am. Partly sunny, with a high near 83. North wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 83 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. Light north wind.
Tonight
Partly cloudy, with a low around 61. Calm wind.
Sunday
A 30 percent chance of showers, mainly after 5pm. Increasing clouds, with a high near 80. Calm wind becoming south 5 to 9 mph in the morning.
Sunday Night
Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Low around 65. Southeast wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers likely, mainly before 8am. Partly sunny, with a high near 83. North wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 66.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chappaqua NY
 41.2°N 73.77°W (Elev. 535 ft)
Last Update:
2:20 am EDT Aug 15, 2026
Forecast Valid:
12pm EDT Aug 15, 2026-6pm EDT Aug 21, 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