Cold Temperatures and Some Snow

A strong cold front and low pressure system will press from the Central U.S. through the East over the next couple of days. The impressive cold front will allow a cold air mass to settle in east of the Rockies and numerous record low temperatures are likely the next few days, especially Wednesday morning. A streak of snow is also expected from the central Plains to northern New England. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

64°F

18°C

Humidity 54%
Wind Speed SW 20 mph
Barometer 29.93 in (1013.6 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 20 Apr 1:56 pm EDT
Extended Forecast for

Great River NY

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 64. Southwest wind around 15 mph.

    Mostly Sunny

    High: 64 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Southwest wind 11 to 14 mph.

    Partly Cloudy

    Low: 50 °F

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 3pm.  Increasing clouds, with a high near 60. Breezy, with a south wind 15 to 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

    High: 60 °F

  • Wednesday
    Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 11pm.  Low around 35. Breezy, with a west wind 17 to 23 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Breezy.
    Showers then
    Mostly Clear

    Low: 35 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 51. Breezy, with a west wind 20 to 22 mph, with gusts as high as 37 mph.

    Mostly Sunny
    and Breezy

    High: 51 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 39. Breezy.

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

    Low: 39 °F

  • Friday

    Friday: Sunny, with a high near 61.

    Sunny

    High: 61 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 45.

    Mostly Clear

    Low: 45 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    Mostly Sunny

    High: 62 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 64. Southwest wind around 15 mph.
Tonight
Partly cloudy, with a low around 50. Southwest wind 11 to 14 mph.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 60. Breezy, with a south wind 15 to 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 11pm. Low around 35. Breezy, with a west wind 17 to 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 51. Breezy, with a west wind 20 to 22 mph, with gusts as high as 37 mph.
Thursday Night
Mostly clear, with a low around 39. Breezy.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 45.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 60.
Click Map For Forecast
Point Forecast:
Great River NY
 40.72°N 73.16°W (Elev. 13 ft)
5:42 am EDT Apr 20, 2021
2pm EDT Apr 20, 2021-6pm EDT Apr 26, 2021
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database