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

Dangerous Heat Wave from the Midwest to East Coast

A large ridge of high pressure extending from the Central to Eastern U.S. will deliver a dangerous summer heat wave through the weekend. Widespread excessive heat warnings and heat advisories already cover the Eastern two-thirds of the country. A number of record highs and overnight warm minimum temperatures are likely. Heat indices will surge past 100 degrees and approach the 110s. Heat Safety! Read More >

Hazardous Weather Conditions

Current conditions at

White Plains - Westchester County Airport (KHPN)

Lat: 41.06°NLon: 73.7°WElev: 367ft.

Overcast

71°F

22°C

Humidity 94%
Wind Speed E 5 mph
Barometer 29.90 in (1012.0 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 18 Jul 8:56 pm EDT
Extended Forecast for

Darien CT

Heat Advisory July 19, 12:00pm until July 20, 06:00am
Excessive Heat Warning July 20, 06:00am until July 21, 08:00pm
Click here for hazard details and duration
Heat Advisory
Excessive Heat Warning

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 72. Northeast wind around 8 mph.

    Chance
    Showers

    Low: 72 °F

  • Friday

    Friday: Mostly sunny, with a high near 87. Heat index values as high as 98. Calm wind becoming south 5 to 9 mph in the afternoon.

    Mostly Sunny

    High: 87 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. Southwest wind around 7 mph.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 76 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 94. Heat index values as high as 107. West wind 6 to 9 mph.

    Mostly Sunny

    High: 94 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 78. West wind 6 to 8 mph.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 78 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.

    Mostly Sunny
    then Chance
    T-storms

    High: 93 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.

    Chance
    T-storms

    Low: 73 °F

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

    Chance
    T-storms

    High: 84 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Chance
    T-storms

    Low: 69 °F

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 72. Northeast wind around 8 mph.
Friday
Mostly sunny, with a high near 87. Heat index values as high as 98. Calm wind becoming south 5 to 9 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. Southwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 94. Heat index values as high as 107. West wind 6 to 9 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 78. West wind 6 to 8 mph.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 83.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Darien CT
 41.05°N 73.47°W (Elev. 0 ft)
Last Update:
7:28 pm EDT Jul 18, 2019
Forecast Valid:
9pm EDT Jul 18, 2019-6pm EDT Jul 25, 2019
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic 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