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Sayreville Junction weather

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Sayreville Junction weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Sayreville Junction weather in numbers

measured normals and 10 years of recorded weather

Sayreville Junction swings 61°F across the year, from 86°F highs in July to 25°F lows in January, and July is usually the wettest month in a year that brings about 48 in of precipitation. Over 10 years of recorded weather it averages 111 days a year at 77°F or above, 44 of them at 86°F or above, 80 frost nights, and rain on 129 days.

Warmest month
July
86°F average high
Coldest month
January
25°F average low
Wettest month
July
48 in a year
Comfortable
4 months
April, May, September and October
Residents
43,000
share this forecast
Most accurate here
European
95/100 CheckWeather Score
Warm days
111 days
a year at 77°F or above
Frost nights
80 nights
a year below 32°F
Rain days
129 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Sayreville Junction’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

NWS, American, European side by side around Sayreville Junction and nearby towns.Live rain radar →
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Sayreville Junction hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Sayreville Junction 10-day forecast, out to 14 days

where the models agree, and where they split

Sayreville Junction, New Jersey (NJ) is at its warmest in Jul (average highs near 86°F) and coldest in Jan (lows around 25°F), with roughly 48 in of precipitation across the year. Below, compare what NWS, American, European forecast for Sayreville Junction 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.

Sayreville Junction climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
39°
25°
Feb
42°
25°
Mar
50°
32°
Apr
61°
42°
May
72°
52°
Jun
82°
61°
Jul
86°
67°
Aug
83°
66°
Sep
76°
59°
Oct
66°
47°
Nov
54°
37°
Dec
44°
30°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Sayreville Junction has changed since 1995

Sayreville Junction sits in the same roughly 50 km square of NASA's reanalysis as Staten Island. That square ran 1.6°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Staten Island page.

Which forecast is most accurate in Sayreville Junction?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
95
/100rank #1
94±0.6°F97±0.9 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
84
/100rank #2
88±1.2°F94±1.9 mph7184% 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.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Sayreville Junction today?
On this page we show what NWS, American, European each forecast for Sayreville Junction 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 Sayreville Junction today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Sayreville Junction 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 Sayreville Junction?
Over the last 30 days, the European model has been the most accurate for Sayreville Junction (CheckWeather Score 95/100), ahead of the American at 84. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Sayreville Junction?
July is typically the warmest month in Sayreville Junction, with average highs around 86°F.
How cold does Sayreville Junction get?
The coldest month in Sayreville Junction is January, when overnight lows average about 25°F.
How much rain does Sayreville Junction get?
Sayreville Junction sees roughly 48 in of precipitation a year, with July usually the wettest month.

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