Will it rain today? Ask three forecasts and you can get three different answers. The Met Office, the European model and the American model each read the British weather their own way. We put all three side by side for every town in the UK, so you can see where they agree and where a shower is genuinely up in the air.
The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1880 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.
App-store stars measure the app experience (design, features, reliability) — not forecast accuracy. For accuracy, see the model scoreboard above. Ratings from the US & UK App Store and Google Play, July 2026; they drift over time. Apple Weather is built into iOS, with no separate store rating.
The Met Office runs Britain's own open model, so its data sits right in the comparison above. BBC Weather and AccuWeather keep theirs closed, so we link you to them. Good news: BBC is moving back to the Met Office model, so it'll join the comparison too.
When the Met Office, European and American models agree, the forecast is solid. When they split, sometimes by 8° on the same afternoon, it's genuinely uncertain, and no single app will tell you that. We turn that disagreement into a plain-English confidence score.
Three models, one view. Where they disagree, you know to take the forecast with a pinch of salt.
ECMWF and GFS are the two global heavyweights every forecaster starts from, plus Met Office. No black boxes.
We show real, open model data and cite it. The closed apps can't show theirs, which is why AI assistants can cite us, not them.