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Strong to Severe Thunderstorms This Afternoon and Evening

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

84°F

29°C

Humidity	70%
Wind Speed	S 13 mph
Barometer	29.81 in (1009.2 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	19 Jun 12:56 pm EDT

More Information:

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

Extended Forecast for

Setauket-East Setauket NY

Juneteenth
High: 89 °F
Mostly Sunny
Tonight
Low: 64 °F
Chance
T-storms
Friday
High: 84 °F
Sunny
Friday Night
Low: 67 °F
Mostly Clear
Saturday
High: 88 °F
Slight Chance
Showers then
Mostly Sunny
Saturday Night
Low: 69 °F
Mostly Cloudy
Sunday
High: 85 °F
Partly Sunny
Sunday Night
Low: 69 °F
Partly Cloudy
Monday
High: 87 °F
Mostly Sunny

Detailed Forecast

Juneteenth

Mostly sunny, with a high near 89. Heat index values as high as 95. South wind 10 to 13 mph, with gusts as high as 23 mph.

Tonight

A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 64. Southwest wind 11 to 13 mph.

Friday

Sunny, with a high near 84. West wind around 18 mph.

Friday Night

Mostly clear, with a low around 67. West wind 5 to 9 mph.

Saturday

A 20 percent chance of showers before noon. Mostly sunny, with a high near 88. Southwest wind 6 to 8 mph.

Saturday Night

Mostly cloudy, with a low around 69.

Sunday

Partly sunny, with a high near 85.

Sunday Night

Partly cloudy, with a low around 69.