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Latest Briefing: Dangerous Heat Today; Flash Flood Threat Thu-Fri
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Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

85°F

29°C

Humidity	57%
Wind Speed	NE 6 mph
Barometer	29.99 in (1015.5 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	30 Jul 7:56 am EDT

More Information:

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

Extended Forecast for

East Islip NY

Heat Advisory July 30, 08:13am until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 30, 08:13am until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Today
High: 89 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 73 °F
Partly Cloudy
Thursday
High: 82 °F
Chance
Showers then
Showers
Likely
Thursday Night
Low: 65 °F
Showers
Likely
Friday
High: 71 °F
Showers
Likely
Friday Night
Low: 62 °F
Chance
Showers then
Mostly Cloudy
Saturday
High: 78 °F
Sunny
Saturday Night
Low: 65 °F
Mostly Clear

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming south 5 to 9 mph in the morning.

Tonight

Partly cloudy, with a low around 73. West wind 5 to 7 mph becoming south in the evening.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. East wind 7 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers likely and possibly a thunderstorm. Cloudy, with a low around 65. East wind 10 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 71. Northeast wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Friday Night

A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 62.

Saturday

Sunny, with a high near 78.

Saturday Night

Mostly clear, with a low around 65.

Sunday

Sunny, with a high near 80.

Sunday Night

Mostly clear, with a low around 66.

Monday

Sunny, with a high near 81.