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

Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and 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 Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

Current conditions at

Farmingdale - Republic Airport (KFRG)

Lat: 40.73°NLon: 73.42°WElev: 72ft.

Fair

71°F

22°C

Humidity 76%
Wind Speed SW 5 mph
Barometer 30.13 in (1020.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 30 Jun 1:53 am EDT
Extended Forecast for

Greenvale NY

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

  • Overnight

    Overnight: Mostly clear, with a low around 68. Light south wind.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind 9 to 18 mph, with gusts as high as 28 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 95. Heat index values as high as 100. Southwest wind 10 to 16 mph.

    High: 95 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 80.

    Low: 80 °F

    Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 102.

    High: 102 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 68. Light south wind.
Tuesday
Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind 9 to 18 mph, with gusts as high as 28 mph.
Wednesday
Mostly sunny, with a high near 95. Heat index values as high as 100. Southwest wind 10 to 16 mph.
Wednesday Night
Partly cloudy, with a low around 77. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 102.
Thursday Night
Clear, with a low around 80.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 102.
Friday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.
Independence Day
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 95.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 73.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenvale NY
 40.8°N 73.64°W (Elev. 39 ft)
Last Update:
3:53 pm EDT Jun 29, 2026
Forecast Valid:
2am EDT Jun 30, 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