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Plainfield weather

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Plainfield weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Plainfield weather in numbers

measured normals and 10 years of recorded weather

Plainfield swings 60°F across the year, from 82°F highs in June to 22°F lows in January, and May is usually the wettest month in a year that brings about 45 in of precipitation. Over 10 years of recorded weather it averages 119 days a year at 77°F or above, 38 of them at 86°F or above, 95 frost nights, and rain on 126 days.

Warmest month
June
82°F average high
Coldest month
January
22°F average low
Wettest month
May
45 in a year
Comfortable
3 months
April, September and October
Residents
31,000
share this forecast
Most accurate here
European
95/100 CheckWeather Score
Warm days
119 days
a year at 77°F or above
Frost nights
95 nights
a year below 32°F
Rain days
126 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Plainfield’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 Plainfield and nearby towns.Live rain radar →
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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

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Plainfield 10-day forecast, out to 14 days

where the models agree, and where they split

Plainfield, Indiana (IN) is at its warmest in Jun (average highs near 82°F) and coldest in Jan (lows around 22°F), with roughly 45 in of precipitation across the year. Below, compare what NWS, American, European forecast for 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.

Plainfield climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
35°
22°
Feb
42°
22°
Mar
50°
31°
Apr
62°
42°
May
72°
52°
Jun
82°
61°
Jul
82°
64°
Aug
82°
64°
Sep
76°
56°
Oct
65°
45°
Nov
50°
35°
Dec
40°
27°

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

How the weather around Plainfield has changed since 1995

Plainfield sits in the same roughly 50 km square of NASA's reanalysis as Greenwood. That square ran 1.7°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Greenwood page.

Which forecast is most accurate in Plainfield?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
95
/100rank #1
95±0.5°F96±1.1 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
79
/100rank #2
87±1.3°F95±1.6 mph5877% 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 Plainfield today?
On this page we show what NWS, American, European each forecast for 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 Plainfield today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for 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 Plainfield?
Over the last 30 days, the European model has been the most accurate for Plainfield (CheckWeather Score 95/100), ahead of the American at 79. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Plainfield?
June is typically the warmest month in Plainfield, with average highs around 82°F.
How cold does Plainfield get?
The coldest month in Plainfield is January, when overnight lows average about 22°F.
How much rain does Plainfield get?
Plainfield sees roughly 45 in of precipitation a year, with May usually the wettest month.

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