Skip to main content
One weather site to rule them all
checkweather.io
CheckWeather USSouth Plainfield

South Plainfield weather

Loading live data…

South Plainfield weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering South Plainfield…

South Plainfield weather in numbers

from 30 years of measured normals

South Plainfield swings 60°F across the year, from 88°F highs in July to 28°F lows in February, and December is usually the wettest month in a year that brings about 51 in of precipitation.

Warmest month
July
88°F average high
Coldest month
February
28°F average low
Wettest month
December
51 in a year
Below freezing
3 months
January, February and December
Comfortable
4 months
April, May, September and October
Residents
24,000
share this forecast

The weather map: all three models at once

NWS, American, European side by side around South Plainfield and nearby towns.Live rain radar →
Loading the three model maps…

South Plainfield 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

Loading the three models…

South Plainfield 10-day forecast, out to 14 days

where the models agree, and where they split

South Plainfield, New Jersey (NJ) is at its warmest in Jul (average highs near 88°F) and coldest in Feb (lows around 28°F), with roughly 51 in of precipitation across the year. Below, compare what NWS, American, European forecast for South Plainfield 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.

South Plainfield climate by month

average daytime high and overnight low across a typical year
Jan
44°
30°
Feb
47°
28°
Mar
52°
34°
Apr
64°
43°
May
73°
51°
Jun
83°
61°
Jul
88°
68°
Aug
83°
65°
Sep
77°
59°
Oct
69°
49°
Nov
55°
38°
Dec
45°
31°

Which forecast is most accurate in the US?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
89
/100rank #1
88±1.2°F96±1.2 mph8491% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
73
/100rank #2
82±1.8°F93±2.3 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.

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)
Loading ratings…
AmericanNOAA GFS
Loading ratings…
EuropeanECMWF
Loading ratings…

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 South Plainfield today?
On this page we show what NWS, American, European each forecast for South Plainfield 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 South Plainfield today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for South Plainfield 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 South Plainfield?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the South Plainfield 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 South Plainfield?
July is typically the warmest month in South Plainfield, with average highs around 88°F.
How cold does South Plainfield get?
The coldest month in South Plainfield is February, when overnight lows average about 28°F.
How much rain does South Plainfield get?
South Plainfield sees roughly 51 in of precipitation a year, with December usually the wettest month.

Nearby

More US weather