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CheckWeather USJohnsburg

Johnsburg weather

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NWSNational Blend (NBM)
76°
Mainly clear
Feels 79° · Wind 1 mph · Humidity 45%
AmericanNOAA GFS
77°
Clear
Feels 78° · Wind 5 mph · Humidity 31%
EuropeanECMWF
74°
Partly cloudy
Feels 76° · Wind 3 mph · Humidity 41%

Latest for Johnsburg: NWS (National Blend (NBM)): 76° Mainly clear · American (NOAA GFS): 77° Clear · European (ECMWF): 74° Partly cloudy.

The weather map: all three models at once

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

consensus of the three models

7-day forecast

where the models agree, and where they split

Johnsburg is a small town of about 6,310 people in IL, sitting at 42.4°N in a temperate climate zone. NWS, American, European each forecast Johnsburg with their own physics, so we line all three up and flag where they disagree. Nearby towns include Fox Lake, McHenry, Lakemoor.

Which forecast is most accurate in the US?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
Behind Apple Weather, Windy
88
/100rank #1
85±1.5°F96±1.2 mph8592% hitECMWF — European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
Behind Windy & many free apps
74
/100rank #2
82±1.8°F92±2.6 mph5374% 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 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.

Common questions

What's the weather in Johnsburg today?
On this page we show what NWS, American, European each forecast for Johnsburg 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 Johnsburg today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Johnsburg 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 Johnsburg?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Johnsburg forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.

The forecasts Americans check

The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.

Nearby

More US weather