Strong to Severe Thunderstorms and Excessive Rainfall Across the Southern U.S. Today

Marginally severe thunderstorms capable of strong wind gusts and hail will be possible today across much of central Texas, and during the afternoon across parts of the Southeast U.S. Heavy rain from thunderstorms may bring isolated flash and urban flooding, along with new and renewed rises on rivers and streams throughout East Texas and the lower Mississippi Valley. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

59°F

15°C

Humidity 81%
Wind Speed S 10 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 20 Apr 2:56 pm EDT
Extended Forecast for

Stony Brook NY

  • Tonight

    Tonight: Mostly clear, with a low around 40. West wind 8 to 13 mph becoming northwest in the evening.

    Mostly Clear

    Low: 40 °F

  • Sunday

    Sunday: Increasing clouds, with a high near 57. West wind 8 to 13 mph.

    Increasing
    Clouds

    High: 57 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 42. West wind 6 to 8 mph.

    Gradual
    Clearing

    Low: 42 °F

  • Monday

    Monday: Sunny, with a high near 59. West wind around 10 mph.

    Sunny

    High: 59 °F

  • Monday
    Night

    Monday Night: Clear, with a low around 39. West wind 5 to 7 mph becoming north after midnight.

    Clear

    Low: 39 °F

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    Sunny

    High: 59 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 45.

    Mostly Cloudy

    Low: 45 °F

  • Wednesday

    Wednesday: A 50 percent chance of showers after 8am.  Mostly cloudy, with a high near 61.

    Chance
    Showers

    High: 61 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 40.

    Mostly Clear

    Low: 40 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 40. West wind 8 to 13 mph becoming northwest in the evening.
Sunday
Increasing clouds, with a high near 57. West wind 8 to 13 mph.
Sunday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 42. West wind 6 to 8 mph.
Monday
Sunny, with a high near 59. West wind around 10 mph.
Monday Night
Clear, with a low around 39. West wind 5 to 7 mph becoming north after midnight.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 61.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 44.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 60.
Click Map For Forecast
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
3:13 pm EDT Apr 20, 2024
3pm EDT Apr 20, 2024-6pm EDT Apr 27, 2024
 
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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