Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79° N Lon: 73.1° W Elev: 98 ft.

Overcast

68°F

20°C

Humidity 70%
Wind Speed Calm
Barometer 30.18 in (1021.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 29 Sep 9:56 pm EDT
Detailed forecast for

Southwest Suffolk

Tonight
Cloudy. Lows in the lower 60s. South winds around 5 mph, becoming northwest after midnight.
Tuesday
Mostly cloudy in the morning, then becoming partly sunny. Highs around 80. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.
Tuesday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph.
Wednesday
Sunny. Highs in the upper 60s. North winds 15 to 20 mph with gusts up to 35 mph.
Wednesday Night
Mostly clear. Lows in the lower 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph.
Thursday
Sunny. Highs in the mid 60s.
Thursday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Friday
Sunny. Highs in the upper 60s.
Friday Night
Mostly clear. Lows in the mid 50s.
Saturday
Sunny. Highs in the mid 70s.
Saturday Night
Clear. Lows in the upper 50s.
Sunday
Sunny. Highs in the mid 70s.
Sunday Night
Mostly clear. Lows around 60.
Monday
Sunny. Highs in the mid 70s.



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851 PM EDT Mon Sep 29 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database