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

71°F

22°C

Humidity 87%
Wind Speed Calm
Barometer 29.97 in (1014.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 5:56 am EDT
Extended Forecast for

Chappaqua NY

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 90. Heat index values as high as 95. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 90 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 61. Light and variable wind becoming north 9 to 14 mph in the evening.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers. Mostly cloudy, with a high near 73. North wind 7 to 13 mph.

    High: 73 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 57. Light east wind.

    Low: 57 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Southeast wind 5 to 8 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Partly sunny, with a high near 75.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 90. Heat index values as high as 95. Calm wind becoming southwest 5 to 7 mph in the morning.
Tonight
A 40 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 61. Light and variable wind becoming north 9 to 14 mph in the evening.
Monday
A 20 percent chance of showers. Mostly cloudy, with a high near 73. North wind 7 to 13 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 57. Light east wind.
Tuesday
Mostly sunny, with a high near 74. Southeast wind 5 to 8 mph.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 60.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 75.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chappaqua NY
 41.17°N 73.74°W (Elev. 404 ft)
Last Update:
2:49 am EDT Aug 17, 2025
Forecast Valid:
6am EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
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