South Valley Stream, New York Weather
South Valley Stream, New York — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for South Valley Stream, Nassau County.
Tides, marine forecast and fishing conditions near South Valley Stream. Tide source:
Flight conditions near South Valley Stream. Data source: locating…
About South Valley Stream, New York
South Valley Stream exists as a verdant expanse where the gentle undulations of the land meet the steady hum of suburban life. The air here often carries a subtle, humid sweetness, a product of the nearby Atlantic and the dense foliage that clothes the landscape. Mature oaks and maples, their branches reaching like ancient supplicants, create canopies that filter the sunlight into shifting patterns on the sidewalks and manicured lawns. Rainfall, frequent and often dramatic, saturates the soil, lending a deep, earthy scent to the atmosphere after a storm, and feeding the many small streams that give the locality its name, their waters a murky, reflective mirror to the sky. The terrain, while not dramatically varied, possesses a quiet, grounded character, a place where one can sense the steady, reassuring pulse of nature beneath the pavement. The history of South Valley Stream is a narrative of evolving aspirations, from its early agricultural roots to its present status as a well-established residential hub. The very streams that traverse its terrain were once vital to the early settlers, powering small mills and providing water for crops that sustained a nascent economy. Over time, as Long Island transformed, so too did South Valley Stream, its fields giving way to homes and businesses, its economy shifting from the land to the service sector and local commerce. The area has long been a desirable address, drawing families seeking a blend of accessibility to the city and a more tranquil, rooted existence. While no singular grand monument defines its character, the collective memory of its development, the quiet resilience of its neighborhoods, and the enduring presence of its natural waterways form a distinctive local identity.
Live animated radar for South Valley Stream 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 | South Valley Stream, Nassau County, New York |
| Coordinates | 40.655937°N, 73.717632°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 11581 |
| Area Code | 516 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This South Valley Stream, New York Weather Page
This page provides live weather conditions and forecasts for South Valley Stream, New York, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. 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 South Valley Stream includes coordinates 40.655937°N, 73.717632°W, situated in Nassau County. ZIP code 11581. 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. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. 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.
