Show HN: Klimly – multi-model weather with uncertainty and activity insights

[ailibrarian]

We built Klimly to fix the “one-provider” weather problem. It pulls forecasts from 7–8 sources (OpenWeatherMap, WeatherAPI, Tomorrow.io, Pirate Weather, Open-Meteo, Meteostat, plus new MET Norway and Bright Sky/DWD for Europe), reconciles them, and shows where models disagree so you know how confident the forecast is.

What’s inside

Multi-model consensus with confidence scores and spread visualization Hourly + 7-day forecasts, air quality, pollen, and API usage/health “What to wear” and “Activity planner” cards generated from the forecast “Best time outside” and smart alerts (rain, UV, extreme temps) Mobile-first UI with tight layouts for small screens City pages (e.g., /cities/kyiv-ua) and lat/lon query support (?lat=50.45&lon=30.52) Why it’s different

Shows disagreement between models instead of hiding it Adds high-quality European data: MET Norway (global ECMWF/HARMONIE) and Bright Sky (DWD MOSMIX) — no API keys needed Lightweight, fast, and free to use Links

Live: https://klimly.com