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Climate Reports Summary for 2025

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Rain Fog/Mist

44°F

7°C

Humidity	96%
Wind Speed	E 15 G 26 mph
Barometer	29.90 in (1012.5 mb)
Dewpoint	43°F (6°C)
Visibility	6.00 mi
Wind Chill	37°F (3°C)
Last update	10 Jan 7:56 pm EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Ronkonkoma NY

Tonight
Low: 42 °F
Rain then
Rain Likely
and Patchy
Fog
Sunday
High: 46 °F
Chance Rain
and Patchy
Fog then
Slight Chance
Rain/Snow
Sunday Night
Low: 29 °F
Partly Cloudy
then Partly
Cloudy and
Breezy
Monday
High: 42 °F
Mostly Sunny
Monday Night
Low: 31 °F
Mostly Clear
Tuesday
High: 46 °F
Sunny
Tuesday Night
Low: 37 °F
Mostly Cloudy
Wednesday
High: 48 °F
Cloudy
Wednesday Night
Low: 31 °F
Chance Rain

Detailed Forecast

Tonight

Rain, mainly before 4am. Patchy fog after 4am. Low around 42. East wind 5 to 11 mph becoming northwest after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday

A chance of rain before 10am, then a slight chance of rain and snow showers after 4pm. Patchy fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 46. West wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

Sunday Night

Partly cloudy, with a low around 29. Wind chill values between 20 and 25. Breezy, with a west wind 17 to 20 mph, with gusts as high as 33 mph.

Monday

Mostly sunny, with a high near 42. Wind chill values between 20 and 30. West wind 13 to 17 mph, with gusts as high as 28 mph.

Monday Night

Mostly clear, with a low around 31. West wind around 10 mph.

Tuesday

Sunny, with a high near 46.

Tuesday Night

Mostly cloudy, with a low around 37.

Wednesday

Cloudy, with a high near 48.