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Latest Briefing: High Heat and Humidity through Midweek
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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

81°F

27°C

Humidity	85%
Wind Speed	SW 8 mph
Barometer	29.97 in (1014.8 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	29 Jul 11:56 pm EDT

More Information:

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

Extended Forecast for

Saint James NY

Heat Advisory July 30, 02:01am until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 30, 02:01am until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Overnight
Low: 77 °F
Clear
Wednesday
High: 94 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 73 °F
Partly Cloudy
Thursday
High: 83 °F
Showers
Likely
Thursday Night
Low: 64 °F
Showers
Likely
Friday
High: 72 °F
Showers
Likely
Friday Night
Low: 62 °F
Chance
Showers then
Partly Cloudy
Saturday
High: 80 °F
Sunny

Detailed Forecast

Overnight

Clear, with a steady temperature around 77. Light west wind.

Wednesday

A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Heat index values as high as 100. Calm wind becoming south 5 to 7 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 73. West wind around 6 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 83. 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 64. 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, mainly before 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%. New precipitation 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 80.

Saturday Night

Mostly clear, with a low around 63.

Sunday

Sunny, with a high near 83.

Sunday Night

Mostly clear, with a low around 65.

Monday

Sunny, with a high near 84.