# AI Weather Monitoring with OpenWeatherMap and Gemini: n8n workflow

> Started by someone opening a chat with it, and works across Google Sheets and Slack. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/ai-weather-monitoring-with-openweathermap-and-gemini (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# AI Weather Monitoring with OpenWeatherMap and Gemini

Started by someone opening a chat with it, and works across Google Sheets and Slack. It hands the judgement calls to Gemini. 16 steps, 2 branches: a working afternoon to understand properly.

Medium Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fai-weather-monitoring-with-openweathermap-and-gemini)

**16 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 2 Model 3 Logic 7 Service 4

The steps in the order they run, from what starts it.

- 1 **Google Gemini Chat Model** Lm Chat Google Gemini *Model*
- 2 **When clicking ‘Execute workflow’** Manual trigger *Starts it*
- 3 **When chat message received** Chat trigger *Starts it*
- 4 **Information Extractor** Information Extractor *Model*
- 5 **Set City Name from Input** Set *Logic*
- 6 **Add Weather Data to Sheet** Google Sheets *Service*
- 7 **Send Weather Update in Slack** Slack *Service*
- 8 **Check City Name Exists** If *Logic*
- 9 **End Workflow** No Op *Logic*
- 10 **AI Tool For Get Weather Data** Google Gemini *Model*
- 11 **Set Default City Name** Set *Logic*
- 12 **API Call to Get Weather Data** Http Request *Service*
- 13 **Check Weather API Error** If *Logic*
- 14 **Normalize Weather API Response** Set *Logic*
- 15 **Send Error to Slack** Slack *Service*
- 16 **Stop Workflow** No Op *Logic*

## How it's built

- **Starts on:** Someone opening a chat with it
- **Steps:** 16, with 2 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Google Sheets, Slack
- **Model:** Gemini

## Questions

What does it need to run?

An n8n account, plus your own Google Sheets and Slack accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone opening a chat with it.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 16 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fai-weather-monitoring-with-openweathermap-and-gemini)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)[Slack](https://millionrounds.com/workflows?service=Slack#library)

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

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- [**Automate RSS content with OpenAI and Google Sheets** 16 steps · calls a model · Google Sheets, RSS](https://millionrounds.com/workflow/automate-rss-content-with-openai-and-google-sheets)
- [**Automate website monitoring with OpenAI and MCP** 16 steps · calls a model · Email, Google Sheets](https://millionrounds.com/workflow/automate-website-monitoring-with-openai-and-mcp)
- [**Automated SEO ranking monitor with Decodo** 16 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-seo-ranking-monitor-with-decodo)
- [**Automated SEO ranking monitor, Decodo scraper & multi-channel** 16 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-seo-ranking-monitor-decodo-scraper-and-multi-chann)
- [**Automated email triage with Gmail and OpenAI** 16 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-email-triage-with-gmail-and-openai)