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

Strong Cold Front Continues Crossing the Central and Eastern States into the Weekend

A strong cold front travels across the Midwest today, Great Lakes to lower Mississippi Valley Saturday, then East Coast on Sunday with areas of showers and thunderstorms. Areas of gusty winds and snow are expected for the Cascades, Rockies, northern Plains, and Upper Midwest today through Saturday. Severe thunderstorms are forecast Saturday from east Texas into the lower Mississippi River Valley. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

44°F

7°C

Humidity 71%
Wind Speed Calm
Barometer 30.19 in (1022.3 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 8 Dec 10:56 am EST
Extended Forecast for

Ronkonkoma NY

  • Today

    Today: Mostly sunny, with a high near 48. Light and variable wind becoming southeast around 5 mph in the afternoon.

    Mostly Sunny

    High: 48 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Southeast wind 3 to 5 mph.

    Partly Cloudy

    Low: 36 °F

  • Saturday

    Saturday: Mostly cloudy, with a high near 54. South wind 5 to 8 mph.

    Mostly Cloudy

    High: 54 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 42. South wind 3 to 5 mph.

    Mostly Cloudy

    Low: 42 °F

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 60. South wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Chance
    Showers then
    Showers

    High: 60 °F

  • Sunday
    Night

    Sunday Night: Showers. The rain could be heavy at times. Low around 47. Windy. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Heavy Rain
    and Windy

    Low: 47 °F

  • Monday

    Monday: Showers, mainly before 8am. The rain could be heavy at times. High near 51. Chance of precipitation is 100%.

    Heavy Rain
    then Chance
    Showers

    High: 51 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 29. Breezy.

    Mostly Clear
    and Breezy

    Low: 29 °F

  • Tuesday

    Tuesday: Sunny, with a high near 44.

    Sunny

    High: 44 °F

Detailed Forecast

Today
Mostly sunny, with a high near 48. Light and variable wind becoming southeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 36. Southeast wind 3 to 5 mph.
Saturday
Mostly cloudy, with a high near 54. South wind 5 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 42. South wind 3 to 5 mph.
Sunday
Showers, mainly after 2pm. High near 60. South wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. The rain could be heavy at times. Low around 47. Windy. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday
Showers, mainly before 8am. The rain could be heavy at times. High near 51. Chance of precipitation is 100%.
Monday Night
Mostly clear, with a low around 29. Breezy.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 30.
Thursday
Mostly sunny, with a high near 45.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Ronkonkoma NY
 40.81°N 73.11°W (Elev. 98 ft)
Last Update:
9:46 am EST Dec 8, 2023
Forecast Valid:
11am EST Dec 8, 2023-6pm EST Dec 14, 2023
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation