Forecast Confidence Screensaver
The Forecast Confidence screensaver shows every member of a weather ensemble drawn at once. Where the members agree the band is tight and the forecast is trustworthy; where they fan apart, nobody actually knows yet. It's free, runs in your browser, and ESC exits.
Live preview
Press ESC to leave fullscreen. Settings are saved in your browser only.
How the Forecast Confidence screensaver works
The saver reads Open-Meteo's ensemble API directly in your browser — no key and no account.
Every member of a weather ensemble drawn at once.
It refreshes on a schedule, so what you see stays current.
Colours can be changed in settings; nothing is stored beyond your own browser.
A worked example
Every member of a weather ensemble drawn at once. Where the members agree the band is tight and the forecast is trustworthy; where they fan apart, nobody actually knows yet.
Settings & tips
- Accent and Background recolour the display.
- Data comes straight from Open-Meteo's ensemble API in your browser.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from Open-Meteo's ensemble API and is refreshed on a schedule.
- Why are there so many lines?
- Each is one member of the ensemble — the same model run from slightly different starting conditions. Where they agree the forecast is solid; where they fan apart it genuinely isn't known.
- Is a key needed?
- No. This source is fully key-less.
- Is it free?
- Yes — free, no download, in your browser.