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Risk of severe thunderstorms from Florida to the Great Lake States

Storms may contain strong, damaging winds and hail. Locally heavy rain is also possible in southern California and the Desert Southwest. Very hot conditions continue in the lower Mississippi Valley and the Deep South.
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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

77°F

25°C

Humidity 85%
Wind Speed SW 9 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 30 Jul 1:56 am EDT
Extended Forecast for

4 Miles SSW Bellport NY

  • Overnight

    Overnight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 76. Southwest wind around 8 mph.

    Patchy Fog

    Low: 76 °F

  • Thursday

    Thursday: Scattered showers and thunderstorms, mainly after noon. Some of the storms could produce gusty winds.  Patchy fog before 7am.  Otherwise, mostly cloudy, with a high near 88. South wind 10 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 30%.

    Scattered
    T-storms and
    Patchy Fog

    High: 88 °F

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely, mainly before midnight. Some of the storms could produce gusty winds.  Cloudy, then gradually becoming partly cloudy, with a low around 69. Southwest wind 6 to 15 mph, with gusts as high as 26 mph.  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 then
    Isolated
    T-storms

    Low: 69 °F

  • Friday

    Friday: Sunny, with a high near 84. Northwest wind around 10 mph.

    Sunny

    High: 84 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 71. West wind around 10 mph.

    Mostly Clear

    Low: 71 °F

  • Saturday

    Saturday: Sunny, with a high near 83.

    Sunny

    High: 83 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 73.

    Partly Cloudy

    Low: 73 °F

  • Sunday

    Sunday: Sunny, with a high near 80.

    Sunny

    High: 80 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 73.

    Partly Cloudy

    Low: 73 °F

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 76. Southwest wind around 8 mph.
Thursday
Scattered showers and thunderstorms, mainly after noon. Some of the storms could produce gusty winds. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 88. South wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Thursday Night
Showers and thunderstorms likely, mainly before midnight. Some of the storms could produce gusty winds. Cloudy, then gradually becoming partly cloudy, with a low around 69. Southwest wind 6 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 84. Northwest wind around 10 mph.
Friday Night
Mostly clear, with a low around 71. West wind around 10 mph.
Saturday
Sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 80.
  Click Map For Forecast
Point Forecast:
4 Miles SSW Bellport NY
 40.7°N 72.96°W (Elev. 0 ft)
1:14 am EDT Jul 30, 2015
2am EDT Jul 30, 2015-6pm EDT Aug 5, 2015
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database