Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
30°F
-1°C
| Humidity | 41% |
| Wind Speed | NW 18 G 26 mph |
| Barometer | 29.85 in (1010.9 mb) |
| Dewpoint | 9°F (-13°C) |
| Visibility | 10.00 mi |
| Wind Chill | 18°F (-8°C) |
| Last update | 24 Feb 2:56 pm EST |
Extended Forecast for
West Sayville NY
Tonight
Low: 21 °F⇑
Mostly Clear
then Rain
LikelyWednesday
High: 40 °F
Rain/Snow
then Chance
Rain/SnowWednesday Night
Low: 29 °F
Partly Cloudy
Thursday
High: 37 °F
Mostly Sunny
then Chance
SnowThursday Night
Low: 26 °F
Chance Snow
Friday
High: 37 °F
Mostly Sunny
Friday Night
Low: 28 °F
Partly Cloudy
Saturday
High: 43 °F
Mostly Sunny
Saturday Night
Low: 29 °F
Partly Cloudy
Detailed Forecast
Tonight
Rain likely after 4am. Increasing clouds, with a temperature falling to near 21 by 10pm, then rising to around 33 during the remainder of the night. Wind chill values between 10 and 15. West wind 6 to 9 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Wednesday
Rain and snow, mainly before 1pm. High near 40. Wind chill values between 25 and 35. Southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 29. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of snow, mainly after 4pm. Partly sunny, with a high near 37. Wind chill values between 25 and 35. West wind around 6 mph.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 26. Calm wind becoming northeast around 5 mph after midnight.
Friday
Mostly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 20.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 30.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
West Sayville NY
40.74°N 73.1°W (Elev. 30 ft)
40.74°N 73.1°W (Elev. 30 ft)
1:21 pm EST Feb 24, 2026
3pm EST Feb 24, 2026-6pm EST Mar 3, 2026
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