VeriSky

Nick Leenders

About this app

Ever wondered how accurate your weather forecast actually is? VeriSky lets you find out.

See the Full Picture:
VeriSky overlays past predictions against what actually happened, so you can see exactly where the forecast got it right and where it missed. Scroll back up to 7 days to compare what was predicted versus observed conditions.

Switch between forecast models including:
- ECMWF IFS: the gold standard in global forecasting
- ECMWF AIFS — ECMWF's new AI-powered model
- AIGFS - NOAA's new AI-powered model
- GFS — NOAA's widely-used American model
- ICON — Germany's DWD high-resolution model


See how each model performs for your specific location and find the one that works best for you.

The Ghost Line:
Our signature feature: see what a model predicted on previous days overlaid on what actually happened. One glance tells you how much you can trust tomorrow's forecast.

Verify It Yourself:
Report how the weather actually feels to you. VeriSky uses your reports to calculate per-model bias corrections, making your forecasts smarter over time.

Key Features:
- Interactive timeline from 7 days past to 10 days ahead
- Detailed daily charts with temperature, sunshine, UV, precipitation, and wind
- Rain vs. snow breakdown when available
No account required. No ads. Just weather, verified.