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CheckWeather USGlen Ellyn

Glen Ellyn weather

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The weather map: all three models at once

NWS, American, European side by side around Glen Ellyn and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

Glen Ellyn, IL is at its warmest in Jul (average highs near 82°F) and coldest in Jan (lows around 21°F), with roughly 42 in of precipitation across the year. Below, compare what NWS, American, European forecast for Glen Ellyn 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.

Glen Ellyn climate by month

average daytime high and overnight low across a typical year
Jan
33°
21°
Feb
44°
26°
Mar
48°
31°
Apr
60°
40°
May
71°
50°
Jun
81°
60°
Jul
82°
64°
Aug
81°
64°
Sep
76°
59°
Oct
64°
48°
Nov
50°
36°
Dec
40°
28°

Which forecast is most accurate in Glen Ellyn?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
89
/100rank #1
91±0.9°F96±1.2 mph8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
73
/100rank #2
83±1.7°F95±1.6 mph4771% 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.

Common questions

What's the weather in Glen Ellyn today?
On this page we show what NWS, American, European each forecast for Glen Ellyn 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 Glen Ellyn today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Glen Ellyn 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 Glen Ellyn?
Over the last 30 days, the European model has been the most accurate for Glen Ellyn (CheckWeather Score 89/100), ahead of the American at 73. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Glen Ellyn?
July is typically the warmest month in Glen Ellyn, with average highs around 82°F.
How cold does Glen Ellyn get?
The coldest month in Glen Ellyn is January, when overnight lows average about 21°F.
How much rain does Glen Ellyn get?
Glen Ellyn sees roughly 42 in of precipitation a year, with July usually the wettest month.

Nearby

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