Beat the best government forecasts by pairing an AI model with fresh data that nobody else has, measured by a fleet of balloons over the oceans and remote land where today's forecasts are weakest.
WeatherMesh-6 out since June 2026: hourly forecasts, 3 km over Europe and the US.
Updated 5 Aug 2026Checked 11 Oct0 updates this week
Each balloon climbs and sinks on command, measuring the air at many heights over 40+ days instead of a single 2-hour climb.
Winds blow in different directions at different heights; choosing an altitude lets a balloon head toward where data is missing.
WeatherMesh learns from decades of past weather, then starts each run from the latest state including its balloon readings.
Agencies buy the raw observations to improve their own models; traders and utilities buy the forecasts.
| Spec | WeatherMesh |
|---|---|
| Global resolution | 0.25° (about 25 km)R (reported) |
| Resolution, Europe and US | 3 kmR (reported) |
| New forecast every | 1 hourR (reported) |
| Error vs ECMWF IFS (company test) | Up to 38% lowerR (reported) |
| Balloons aloft at once | 600+R (reported) |
| Balloon flight time | 40+ daysR (reported) |
R reported by the company
WindBorne Systems
Steerable weather balloons, WeatherMesh AI forecasts
WindBorne builds long-flying weather balloons that steer by changing altitude and sells their data and its own AI forecasts (WeatherMesh) to weather agencies, militaries and energy traders.
windbornesystems.com (opens windbornesystems.com)Company profile →
