營運
Weather Temperature to SIGNL4 Alert
Send a SIGNL4 alert when a city’s current temperature is below 25°C.
下載工作流程
Send a SIGNL4 alert when a city’s current temperature is below 25°C.
Setup
Connect OpenWeather in Get current weather and set the city name. The starting city is Berlin and the request uses metric units. In SIGNL4, copy the team or integration webhook URL and store the complete URL as a secret Variable. Bind Send SIGNL4 alert URL to that Variable after importing. The URL contains the team secret; keep it private. In n8n connect OpenWeather and SIGNL4 credentials, and set the same city in OpenWeatherMap. Enable one format only.
Behavior
Run manually or every day at 06:15 UTC. The source schedule used the n8n instance timezone; review the timezone before enabling. n8n Schedule Trigger uses a stable second within the minute, while Open Flow runs on the minute boundary. If the current temperature is strictly below 25°C, the workflow sends one alert containing the temperature and the returned latitude and longitude. At exactly 25°C or above it sends none. The alert retains the source title, external ID weather-alert and new status.
An invalid temperature, missing coordinates for an alert, weather request failure or failed alert request stops the run. A successful SIGNL4 response confirms event acceptance, not that a person was notified. An uncertain alert request may have succeeded; check SIGNL4 before retrying. Each triggering run can produce another alert. No automatic retry or resolution is configured. The HTTP request carries the secret in its URL, so restrict access to execution logs.
Inspiration & credits
Changes to the source
- Make UTC explicit and validate weather data before an alert.
- Use the OpenWeather Action and SIGNL4’s inbound webhook with a secret URL Variable in Open Flow; n8n retains its native nodes and credentials.
Adapted from Send weather alerts to your mobile phone with OpenWeatherMap and SIGNL4 in Zie619/n8n-workflows. The matching n8n community listing credits Ron. The original template does not state a separate license.
The collection’s MIT notice is pinned at a later revision. This is the collection notice at that revision; it does not establish a separate original template author’s license. Our changes are listed above; see repository licensing.
MIT License
Copyright (c) 2025 Zie619
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