Mount Sinai, New York Weather
Mount Sinai, New York — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for Mount Sinai, Suffolk County.
Tides, marine forecast and fishing conditions near Mount Sinai. Tide source:
Full aviation weather for Mount Sinai is published on the Long Island MacArthur Airport (KISP) page, 18 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Mount Sinai have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Mount Sinai: Brookhaven Calabro Airport (KHWV) 19 km · Igor I Sikorsky Memorial Airport (KBDR) 25 km · Lufker Airport (K49N) 27 km · Francis S Gabreski Airport (KFOK) 35 km · Tweed New Haven Airport (KHVN) 37 km
Conditions reported at KISP describe the airfield itself. Weather 18 km away can differ, particularly in terrain or near the coast. For conditions at Mount Sinai specifically, see the current conditions and forecast above.
About Mount Sinai, New York
Mount Sinai unfolds across a landscape shaped by the gentle push of glacial moraines, a terrain of modest hills and sheltered hollows that spill towards the northern coast of Long Island. It lies 5.6 miles north-north-west of Coram, NY (from Coram, NY: bearing 345°T), and is situated 7.1 miles north-north-east of Centereach. Here, mature oak and maple trees, their branches heavy with the moisture of the Atlantic air, form a verdant canopy over winding lanes. The air itself carries a perpetual tang of salt and damp earth, a scent that deepens in the twilight hours as the light softens, bleaching the greens to muted greys and casting long, languid shadows across the lawns and the occasional weathered fence post. The character of Mount Sinai is one of quiet domesticity, where the distant hum of traffic on the larger thoroughfares is softened by the closer sounds of lawnmowers and the murmur of conversation drifting from open windows. Historically, Mount Sinai's identity is entwined with the agricultural past of its surroundings, a legacy still visible in the occasional farm stand or the enduring presence of open fields. Its economy, however, has long since shifted, with many residents commuting to further afield for work, while local businesses cater to the daily needs of this predominantly residential community. The proximity to the Long Island Sound is a defining element, offering a subtle but persistent influence on the local rhythm. This connection to the water, though not always immediately apparent from every street, breathes a certain openness into the otherwise contained neighborhoods, a reminder of the larger world that lies just beyond the tree line and the gently rolling terrain.
Live animated radar for Mount Sinai and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Mount Sinai, Suffolk County, New York |
| Coordinates | 40.947043°N, 73.02955°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 11766 |
| Area Code | 516 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Mount Sinai, New York Weather Page
This page provides live weather conditions and forecasts for Mount Sinai, New York, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Mount Sinai includes coordinates 40.947043°N, 73.029550°W, situated in Suffolk County. ZIP code 11766. Telephone area code: 516. Timezone: Eastern Time (America/New_York).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
