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

Dangerous Heat Wave Continues; Enhanced Area of Severe Thunderstorms Today

A prolonged, dangerous heat wave will continue today in the Midwest and Mississippi Valley, and persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Widespread moderate to extreme HeatRisk is forecast. Scattered wind damage and large hail are expected from severe thunderstorms impacting parts of Nebraska into Iowa today. Read More >

Hazardous Weather Conditions

Current conditions at

East Hampton Town Airport (KJPX)

Lat: 40.96°NLon: 72.25°WElev: 55ft.

Fair

93°F

34°C

Humidity 40%
Wind Speed W 10 G 16 mph
Barometer 29.94 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 3 Jul 11:55 am EDT
Extended Forecast for

Greenport West NY

Extreme Heat Warning July 3, 12:07pm until July 4, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 3, 12:07pm until July 4, 09:00pm

    NOW until 9:00pm Sat

    Extreme Heat Warning

  • This Afternoon

    High: 97 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms between 10pm and midnight. Partly cloudy, with a low around 76. Southwest wind 5 to 9 mph becoming light west after midnight. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    Showers then
    Partly Cloudy

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 95. Heat index values as high as 105. West wind 6 to 9 mph.

    High: 95 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 72. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 88. Light and variable wind becoming northeast around 5 mph in the morning.

    High: 88 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 97. Heat index values as high as 109. West wind 7 to 9 mph.
Tonight
A chance of showers and thunderstorms between 10pm and midnight. Partly cloudy, with a low around 76. Southwest wind 5 to 9 mph becoming light west after midnight. Chance of precipitation is 30%.
Independence Day
A 30 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 95. Heat index values as high as 105. West wind 6 to 9 mph.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 88. Light and variable wind becoming northeast around 5 mph in the morning.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 67.
Monday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenport West NY
 41.09°N 72.37°W (Elev. 0 ft)
Last Update:
5:22 am EDT Jul 3, 2026
Forecast Valid:
12pm EDT Jul 3, 2026-6pm EDT Jul 9, 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