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Rahway weather

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NWSNational Blend (NBM)
48°
Mainly clear
Feels 44° · Wind 3 mph · Humidity 72%
AmericanNOAA GFS
44°
Overcast
Feels 39° · Wind 3 mph · Humidity 72%
EuropeanECMWF
47°
Overcast
Feels 42° · Wind 4 mph · Humidity 68%

Latest for Rahway: NWS (National Blend (NBM)): 48° Mainly clear · American (NOAA GFS): 44° Overcast · European (ECMWF): 47° Overcast.

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Rahway weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Rahway…

Rahway weather in numbers

measured normals and 10 years of recorded weather

Rahway swings 60°F across the year, from 85°F highs in July to 25°F lows in February, 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 103 days a year at 77°F or above, 35 of them at 86°F or above, 78 frost nights, and rain on 129 days.

Warmest month
July
85°F average high
Coldest month
February
25°F average low
Wettest month
July
48 in a year
Comfortable
3 months
May, September and October
Residents
30,000
share this forecast
Most accurate here
European
96/100 CheckWeather Score
Warm days
103 days
a year at 77°F or above
Frost nights
78 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 Rahway’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 Rahway and nearby towns.Live rain radar →
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Rahway 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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Rahway 10-day forecast, out to 14 days

where the models agree, and where they split

Rahway, New Jersey (NJ) is at its warmest in Jul (average highs near 85°F) and coldest in Feb (lows around 25°F), with roughly 48 in of precipitation across the year. Below, compare what NWS, American, European forecast for Rahway 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.

Rahway climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
39°
26°
Feb
41°
25°
Mar
49°
32°
Apr
59°
42°
May
70°
52°
Jun
80°
61°
Jul
85°
68°
Aug
82°
66°
Sep
76°
60°
Oct
66°
47°
Nov
54°
38°
Dec
43°
31°

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

How the weather around Rahway has changed since 1995

Rahway 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 Rahway?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
96
/100rank #1
95±0.5°F98±0.6 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
88
/100rank #2
83±1.7°F93±2.1 mph8994% 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 Rahway today?
On this page we show what NWS, American, European each forecast for Rahway 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 Rahway today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Rahway 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 Rahway?
Over the last 30 days, the European model has been the most accurate for Rahway (CheckWeather Score 96/100), ahead of the American at 88. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Rahway?
July is typically the warmest month in Rahway, with average highs around 85°F.
How cold does Rahway get?
The coldest month in Rahway is February, when overnight lows average about 25°F.
How much rain does Rahway get?
Rahway sees roughly 48 in of precipitation a year, with July usually the wettest month.

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