Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

67°F

19°C

Humidity	68%
Wind Speed	N 14 mph
Barometer	30.12 in (1019.9 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	29 Aug 2:56 am EDT

More Information:

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

Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

Overnight
Low: 61 °F
Mostly Clear
Saturday
High: 77 °F
Mostly Sunny
Saturday Night
Low: 62 °F
Mostly Clear
Sunday
High: 80 °F
Mostly Sunny
Sunday Night
Low: 67 °F
Chance
Showers
Monday
High: 80 °F
Partly Sunny
Monday Night
Low: 65 °F
Chance
Showers
Tuesday
High: 77 °F
Chance
Showers
Tuesday Night
Low: 66 °F
Showers
Likely

Detailed Forecast

Overnight

Mostly clear, with a low around 61. North wind around 7 mph.

Saturday

Mostly sunny, with a high near 77. North wind 3 to 8 mph.

Saturday Night

Mostly clear, with a low around 62. Light west wind.

Sunday

Mostly sunny, with a high near 80. Light west wind becoming southwest 6 to 11 mph in the morning.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind 5 to 9 mph becoming light west after midnight. Chance of precipitation is 50%.

Monday

Partly sunny, with a high near 80.

Monday Night

A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 65.

Tuesday

A 50 percent chance of showers. Mostly cloudy, with a high near 77.

Tuesday Night

Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Wednesday

A 30 percent chance of showers. Mostly cloudy, with a high near 80.

Wednesday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

Thursday

A 40 percent chance of showers. Partly sunny, with a high near 82.

Thursday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 64.

Friday

Mostly sunny, with a high near 78.