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

Hazardous Weather Conditions

Current conditions at

White Plains - Westchester County Airport (KHPN)

Lat: 41.06°NLon: 73.7°WElev: 367ft.

Fair

85°F

29°C

Humidity 63%
Wind Speed W 7 mph
Barometer 29.85 in (1010.0 mb)
Dewpoint 71°F (22°C)
Visibility 7.00 mi
Heat Index90°F (32°C)
Last update 15 Jul 9:56 am EDT
Extended Forecast for

Chappaqua NY

Heat Advisory July 15, 10:28am until July 15, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 15, 10:28am until July 15, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • Today

    High: 94 °F

    Patchy Smoke

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Areas of smoke. Mostly cloudy, with a low around 70. Northwest wind 3 to 8 mph.

    Low: 70 °F

    Slight Chance
    T-storms then
    Patchy Smoke

  • Thursday

    Thursday: Patchy smoke. Partly sunny, with a high near 88. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 88 °F

    Patchy Smoke

  • Thursday Night

    Thursday Night: Areas of smoke. Partly cloudy, with a low around 67. Northwest wind 5 to 8 mph.

    Low: 67 °F

    Areas Smoke

  • Friday

    Friday: Patchy smoke before 8am. Mostly sunny, with a high near 85. Northwest wind 3 to 6 mph.

    High: 85 °F

    Patchy Smoke
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 80. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

Detailed Forecast

Today
Patchy smoke. Sunny, with a high near 94. Heat index values as high as 99. Northwest wind 8 to 11 mph, with gusts as high as 23 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Areas of smoke. Mostly cloudy, with a low around 70. Northwest wind 3 to 8 mph.
Thursday
Patchy smoke. Partly sunny, with a high near 88. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Areas of smoke. Partly cloudy, with a low around 67. Northwest wind 5 to 8 mph.
Friday
Patchy smoke before 8am. Mostly sunny, with a high near 85. Northwest wind 3 to 6 mph.
Friday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 66.
Saturday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 80. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 66. Chance of precipitation is 80%.
Sunday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chappaqua NY
 41.17°N 73.77°W (Elev. 545 ft)
Last Update:
2:28 am EDT Jul 15, 2026
Forecast Valid:
10am EDT Jul 15, 2026-6pm EDT Jul 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