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Billerica weather

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Billerica weather alerts and warnings

active National Weather Service watches, warnings and advisories

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The weather map: all three models at once

NWS, American, European side by side around Billerica and nearby towns.Live rain radar →
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Billerica 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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Billerica 10-day forecast, out to 14 days

where the models agree, and where they split

Billerica is a small town of about 40,000 people in Massachusetts (MA), sitting at 42.6°N in a temperate climate zone. NWS, American, European each forecast Billerica with their own physics, so we line all three up and flag where they disagree. Nearby towns include Pinehurst, Tewksbury, Bedford.

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.

How the weather around Billerica has changed since 1995

Billerica sits in the same roughly 50 km square of NASA's reanalysis as Boston. That square ran 1.6°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Boston page.

Which forecast is most accurate in Billerica?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
88
/100rank #1
90±1.0°F95±1.6 mph8290% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
87
/100rank #2
95±0.5°F97±0.8 mph7184% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

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 Billerica today?
On this page we show what NWS, American, European each forecast for Billerica 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 Billerica today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Billerica 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 Billerica?
Over the last 30 days, the American model has been the most accurate for Billerica (CheckWeather Score 88/100), ahead of the European at 87. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.

Nearby

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