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

76°F

24°C

Humidity 69%
Wind Speed S 5 mph
Barometer 29.79 in (1008.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 27 Jul 7:56 pm EDT
Extended Forecast for

Cos Cob CT

Flood Watch July 28, 08:00am until July 29, 08:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. South wind 3 to 5 mph.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. South wind 6 to 14 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 79 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 67. Southeast wind 10 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 67 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 78. East wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 65. North wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers after 2pm. Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. South wind 3 to 5 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. South wind 6 to 14 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 67. Southeast wind 10 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 78. East wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 65. North wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers after 2pm. Partly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Partly sunny, with a high near 85.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 68.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cos Cob CT
 41.06°N 73.59°W (Elev. 108 ft)
Last Update:
2:51 pm EDT Jul 27, 2026
Forecast Valid:
8pm EDT Jul 27, 2026-6pm EDT Aug 3, 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