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

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

48°F

9°C

Humidity 100%
Wind Speed S 7 mph
Barometer 29.55 in (1000.5 mb)
Dewpoint 48°F (9°C)
Visibility 1.75 mi
Wind Chill45°F (7°C)
Last update 12 Mar 4:56 am EDT
Extended Forecast for

Patchogue NY

  • Overnight

    Overnight: A 40 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 45. Southwest wind around 9 mph, with gusts as high as 23 mph.

    Low: 45 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Rain likely before 4pm, then rain and snow. Patchy fog before 7am. Temperature rising to near 48 by 8am, then falling to around 39 during the remainder of the day. Breezy, with a northwest wind 14 to 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 48 °F⇓

    Rain Likely
    and Patchy
    Fog then
    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Snow, possibly mixed with rain before 8pm. Low around 29. Northwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 29 °F

    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 45. Light and variable wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 45 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. South wind 10 to 13 mph, with gusts as high as 26 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 32.

    Low: 32 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, with a high near 47.

    High: 47 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Chance Rain
    then Rain

Detailed Forecast

Overnight
A 40 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 45. Southwest wind around 9 mph, with gusts as high as 23 mph.
Thursday
Rain likely before 4pm, then rain and snow. Patchy fog before 7am. Temperature rising to near 48 by 8am, then falling to around 39 during the remainder of the day. Breezy, with a northwest wind 14 to 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Snow, possibly mixed with rain before 8pm. Low around 29. Northwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
Increasing clouds, with a high near 45. Light and variable wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
Partly cloudy, with a low around 36. South wind 10 to 13 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 49.
Saturday Night
Increasing clouds, with a low around 32.
Sunday
Cloudy, with a high near 47.
Sunday Night
Rain, mainly after 2am. Low around 39. Chance of precipitation is 80%.
Monday
Rain and possibly a thunderstorm. High near 55. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 32. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
2:50 am EDT Mar 12, 2026
Forecast Valid:
5am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation