--- title: "Zambretti and Sager" description: "Zambretti and Sager is a Marketplace integration for Home Assistant. It has 271 installs sharing analytics, works locally and was last updated October 24, 2026." canonical: "https://vulpo.app/integrations/marketplace/meksspirt-zambretti-sager" url: "https://vulpo.app/integrations/marketplace/meksspirt-zambretti-sager.md" last-updated: "2026-10-27" version: "1.4" --- # Zambretti and Sager > Zambretti and Sager is a Marketplace integration for Home Assistant. It has 271 installs sharing analytics, works locally and was last updated October 24, 2026. 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. Automatic summary of the README and code of meksspirt/zambretti\_sager. Something wrong, or are you the maintainer and want your own text here? [Get in touch](https://vulpo.app/contact) [Open in My Home Assistant](https://my.home-assistant.io/redirect/hacs_repository/?owner=meksspirt&repository=zambretti_sager&category=integration) On Home Assistant 2026.11 or newer? [Open it in the Marketplace](https://my.home-assistant.io/redirect/marketplace_repository/?owner=meksspirt&repository=zambretti_sager&category=integration) ## 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. ## Setting it up Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services. ### Weather Station Setup - **Pressure Sensor**: Select 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 Correction**: Enable if using an absolute pressure sensor above sea level - **Location**: Click on the map to set your location for altitude calculation Also asked when changing the connection. ### After setup - **Pressure Sensor**: Select 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 Correction**: Enable if using an absolute pressure sensor above sea level - **Location**: Click on the map to set your location for altitude calculation Texts from the code of [meksspirt/zambretti\_sager](https://github.com/meksspirt/zambretti_sager). ## Entities - **Sensors**: Zambretti Forecast, Sager Forecast, Zambretti Forecast 6h, Zambretti Forecast 12h, Zambretti Forecast 24h, Precipitation Probability, Last Update ## Troubleshooting - **Diagnostics**: Downloads 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,… From the README of [meksspirt/zambretti\_sager](https://github.com/meksspirt/zambretti_sager#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened. ## At a glance - Kind: Marketplace integration - Category: [Weather and alerts](https://vulpo.app/integrations/category/weather-and-alerts.md) - Number: 271 installs sharing analytics - Connection: Works locally - Upkeep: Updated in the last 6 months - Needs: Needs the Marketplace (HACS on 2026.10 and older) - Latest version: v2.0.1, last updated October 24, 2026 - Domain: `zambretti_sager` - Source: - Issues: - Screenshot: https://vulpo.app/integrations-img/a380b08686279255.webp (from meksspirt/zambretti\_sager's README) In Vulpo: Chart card, Lumen sky (Pro), Apple Watch Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about) Last updated 2026-10-27. 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