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

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

79°F

26°C

Humidity 67%
Wind Speed SW 10 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 29 Jun 6:56 pm EDT
Extended Forecast for

Coram NY

Extreme Heat Watch July 1, 12:00pm until July 4, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Mostly clear, with a low around 66. South wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Southwest wind 5 to 14 mph.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 71. Southwest wind 10 to 17 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. Southwest wind 10 to 16 mph.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Southwest wind 9 to 14 mph.

    Low: 74 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 77.

    Low: 77 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 66. South wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 86. Southwest wind 5 to 14 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 71. Southwest wind 10 to 17 mph.
Wednesday
Mostly sunny, with a high near 90. Southwest wind 10 to 16 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Southwest wind 9 to 14 mph.
Thursday
Sunny, with a high near 97.
Thursday Night
Clear, with a low around 77.
Friday
Sunny, with a high near 99.
Friday Night
Partly cloudy, with a low around 76.
Independence Day
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 97.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 73.
Sunday
Mostly sunny, with a high near 94.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coram NY
 40.86°N 73.01°W (Elev. 135 ft)
Last Update:
3:53 pm EDT Jun 29, 2026
Forecast Valid:
7pm EDT Jun 29, 2026-6pm EDT Jul 6, 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