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CheckWeather USWest Sayville

West Sayville weather

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The weather map: all three models at once

NWS, American, European side by side around West Sayville and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

West Sayville, NY is at its warmest in Jul (average highs near 80°F) and coldest in Feb (lows around 31°F), with roughly 55 in of precipitation across the year. Below, compare what NWS, American, European forecast for West Sayville right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

West Sayville climate by month

average daytime high and overnight low across a typical year
Jan
44°
33°
Feb
44°
31°
Mar
49°
36°
Apr
56°
45°
May
64°
52°
Jun
74°
62°
Jul
80°
70°
Aug
78°
68°
Sep
73°
62°
Oct
65°
53°
Nov
54°
42°
Dec
46°
35°

Which forecast is most accurate in the US?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
89
/100rank #1
87±1.3°F96±1.2 mph8592% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
73
/100rank #2
81±1.9°F93±2.2 mph4972% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

Common questions

What's the weather in West Sayville today?
On this page we show what NWS, American, European each forecast for West Sayville today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in West Sayville today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for West Sayville and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for West Sayville?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the West Sayville forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in West Sayville?
July is typically the warmest month in West Sayville, with average highs around 80°F.
How cold does West Sayville get?
The coldest month in West Sayville is February, when overnight lows average about 31°F.
How much rain does West Sayville get?
West Sayville sees roughly 55 in of precipitation a year, with December usually the wettest month.

Nearby

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