Dangerous Heat and Humidity Continues Over the Midwest/ East; Severe Thunderstorms Upper Midwest Into Great Lakes

Oppressive heat and humidity will continue through today from the Midwest to the East Coast. The Midwest will get a slight reprieve on Sunday as a cold front moves through the area, while excessive heat continues in the East. Severe thunderstorms capable of damaging wind gusts are forecast into tonight across portions of Iowa, Illinois and Wisconsin into Lower Michigan. Read More >

Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Fair

92°F

33°C

Humidity 56%
Wind Speed SW 13 mph
Barometer 29.79 in (1008.7 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 20 Jul 3:56 pm EDT
Extended Forecast for

Mid Island NY

Excessive Heat Warning until July 21, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 21, 08:00pm

    NOW until
    8:00pm Sun

    Excessive Heat Warning

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 94. Heat index values as high as 103. Southwest wind around 10 mph.

    Mostly Sunny

    High: 94 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 80. Southwest wind 5 to 9 mph.

    Partly Cloudy

    Low: 80 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Heat index values as high as 106. West wind 5 to 9 mph.

    Mostly Sunny

    High: 96 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. West wind 5 to 8 mph becoming north after midnight.

    Slight Chance
    T-storms

    Low: 73 °F

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 10am.  Increasing clouds, with a high near 85. Light and variable wind becoming east around 6 mph in the morning.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely

    High: 85 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 72. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms
    Likely

    Low: 72 °F

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms before 1pm.  Mostly cloudy, with a high near 81.

    Chance
    T-storms

    High: 81 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 66.

    Mostly Cloudy

    Low: 66 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 94. Heat index values as high as 103. Southwest wind around 10 mph.
Tonight
Partly cloudy, with a low around 80. Southwest wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 96. Heat index values as high as 106. West wind 5 to 9 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. West wind 5 to 8 mph becoming north after midnight.
Monday
Showers and thunderstorms likely, mainly after 10am. Increasing clouds, with a high near 85. Light and variable wind becoming east around 6 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 81.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 83.
Click Map For Forecast
Point Forecast:
Mid Island NY
 40.87°N 72.92°W (Elev. 108 ft)
3:40 pm EDT Jul 20, 2019
4pm EDT Jul 20, 2019-6pm EDT Jul 27, 2019
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database