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East Chicago weather

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East Chicago weather alerts and warnings

active National Weather Service watches, warnings and advisories

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East Chicago weather in numbers

measured normals and 10 years of recorded weather

East Chicago swings 54°F across the year, from 76°F highs in August to 22°F lows in January, and May is usually the wettest month in a year that brings about 41 in of precipitation. Over 10 years of recorded weather it averages 70 days a year at 77°F or above, 15 of them at 86°F or above, 98 frost nights, and rain on 132 days.

Warmest month
August
76°F average high
Coldest month
January
22°F average low
Wettest month
May
41 in a year
Comfortable
4 months
June, July, August and September
Residents
29,000
share this forecast
Most accurate here
European
83/100 CheckWeather Score
Warm days
70 days
a year at 77°F or above
Frost nights
98 nights
a year below 32°F
Rain days
132 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for East Chicago’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 East Chicago and nearby towns.Live rain radar →
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East Chicago 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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East Chicago 10-day forecast, out to 14 days

where the models agree, and where they split

East Chicago, Indiana (IN) is at its warmest in Aug (average highs near 76°F) and coldest in Jan (lows around 22°F), with roughly 41 in of precipitation across the year. Below, compare what NWS, American, European forecast for East Chicago 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.

East Chicago climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
31°
22°
Feb
35°
22°
Mar
43°
31°
Apr
54°
40°
May
62°
49°
Jun
72°
60°
Jul
75°
66°
Aug
76°
66°
Sep
70°
60°
Oct
58°
48°
Nov
46°
37°
Dec
35°
27°

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

How the weather around East Chicago has changed since 1995

East Chicago sits in the same roughly 50 km square of NASA's reanalysis as Hammond. That square ran 1.5°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Hammond page.

Which forecast is most accurate in East Chicago?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
83
/100rank #1
74±2.6°F90±3.0 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
78
/100rank #2
65±3.5°F95±1.7 mph8290% 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 East Chicago today?
On this page we show what NWS, American, European each forecast for East Chicago 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 East Chicago today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for East Chicago 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 East Chicago?
Over the last 30 days, the European model has been the most accurate for East Chicago (CheckWeather Score 83/100), ahead of the American at 78. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in East Chicago?
August is typically the warmest month in East Chicago, with average highs around 76°F.
How cold does East Chicago get?
The coldest month in East Chicago is January, when overnight lows average about 22°F.
How much rain does East Chicago get?
East Chicago sees roughly 41 in of precipitation a year, with May usually the wettest month.

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