Hazardous Weather Conditions
Current conditions at
Shirley, Brookhaven Airport (KHWV)
Lat: 40.82°NLon: 72.87°WElev: 82ft.
Mostly Cloudy
52°F
11°C
| Humidity | 89% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 30.07 in (1018.2 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 51°F (11°C) |
| Last update | 18 Apr 7:56 am EDT |
Extended Forecast for
Mount Sinai NY
Coastal Flood Advisory April 18, 11:00pm until April 19, 02:00am
Today

High: 60 °F
Mostly Cloudy
Tonight
Low: 46 °F
Patchy Fog
then Chance
Showers and
Patchy FogSunday

High: 57 °F
Showers
Sunday Night

Low: 39 °F
Gradual
ClearingMonday
High: 52 °F
Mostly Sunny
then Slight
Chance
ShowersMonday Night

Low: 35 °F
Partly Cloudy
Tuesday

High: 51 °F
Sunny
Tuesday Night

Low: 41 °F
Partly Cloudy
Wednesday

High: 61 °F
Partly Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 60. East wind 6 to 9 mph.
Tonight
A 30 percent chance of showers, mainly after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 46. Southeast wind 3 to 6 mph.
Sunday
A chance of showers and thunderstorms before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then showers after 2pm. High near 57. South wind 5 to 14 mph becoming north in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 39. West wind 6 to 8 mph.
Monday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 52. Northwest wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 62.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mount Sinai NY
40.95°N 73°W (Elev. 174 ft)
40.95°N 73°W (Elev. 174 ft)
8:37 am EDT Apr 18, 2026
8am EDT Apr 18, 2026-6pm EDT Apr 24, 2026



