Screenshots From the README of meksspirt/zambretti_sager.
About
Zambretti and Sager is a custom integration that forecasts local weather from barometric pressure trends. It adds sensors for the Zambretti and Sager forecasts, Zambretti outlooks for 6, 12 and 24 hours, a precipitation probability and a last update time, plus a weather entity. The Sager forecast also uses wind direction, and optional wind speed, temperature and humidity sensors can refine the results. An optional sea level pressure correction uses a location picked on a map to work out altitude, which suits an absolute pressure sensor. A bundled Lovelace card shows the forecast with a pressure history chart, wind information and a night mode. It works locally and is configured in the UI.
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Supports
Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.
Provides
- Sensors
- Weather
Setting it up
Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.
Weather Station Setup
- Pressure SensorSelect your barometric pressure sensor
- Wind Direction Sensor (optional)Optional: wind direction sensor (in degrees)
- Wind Speed Sensor (optional)Optional: dedicated wind speed sensor
- Temperature Sensor (optional)Optional: used for sea level pressure correction
- Humidity Sensor (optional)Optional: improves precipitation probability accuracy
- Enable Sea Level Pressure CorrectionEnable if using an absolute pressure sensor above sea level
- LocationClick on the map to set your location for altitude calculation
Also asked when changing the connection.
After setup
- Pressure SensorSelect your barometric pressure sensor
- Wind Direction Sensor (optional)Optional: wind direction sensor (in degrees)
- Wind Speed Sensor (optional)Optional: dedicated wind speed sensor
- Temperature Sensor (optional)Optional: used for sea level pressure correction
- Humidity Sensor (optional)Optional: improves precipitation probability accuracy
- Enable Sea Level Pressure CorrectionEnable if using an absolute pressure sensor above sea level
- LocationClick on the map to set your location for altitude calculation
Texts from the code of meksspirt/zambretti_sager.
Entities
- SensorsZambretti Forecast, Sager Forecast, Zambretti Forecast 6h, Zambretti Forecast 12h, Zambretti Forecast 24h, Precipitation Probability, Last Update
Troubleshooting
- DiagnosticsDownloads a diagnostics file to attach to a bug report.
From the README
A Home Assistant custom integration that provides weather forecasting using the classic Zambretti and Sager algorithms based on barometric pressure trends.
- Zambretti Forecast — 32 different weather predictions based on pressure trends over 3 hours
- Sager Forecast — weather prediction based on current pressure and wind direction
- Extended Forecasts — predictions for 6, 12, and 24 hours ahead
- Precipitation Probability — percentage chance of rain based on pressure trends
- Sea Level Pressure Correction — automatic altitude-based pressure correction for accurate forecasts
- Interactive Map Selection — choose your location on a map for automatic altitude detection
- Temperature Compensation — uses temperature sensor for precise pressure correction
- Wind Speed & Direction — optional wind speed sensor with visualization in the card
- Night Mode — automatic moon/stars icon and dark theme when sun is down
- Pressure Sparkline — 24-hour pressure history chart inside the card
- Animated Weather Icons — drifting clouds, falling snow, waving wind lines
- Localization — 20 languages: English, German, Spanish, French, Italian, Dutch, Polish, Portuguese, Russian, Ukrainian, Chinese (Simplified & Traditional), Japanese, Korean, Czech, Swedish, Danish,…
Shows in Vulpo
Chart card, Lumen sky, Apple Watch.Information
- Installs
- 271 sharing analytics
- Connection
- Works locally
- Upkeep
- Updated in the last 6 months
- Version
- v2.0.1,
- Category
- Weather and alerts
- Kind
- Marketplace integration
- Needs
- Needs the Marketplace (HACS on 2026.10 and older)
- Domain
zambretti_sager- Issues
- Report an issue
