Latenode
Slack

Automatically post National Weather Service 7-day forecasts to Slack

This Latenode automation template allows users to fetch the latest 7-day weather forecast from the National Weather Service and automatically post detailed daily updates to a designated Slack channel. By typing a simple command in Slack (e.g., `/weather New York`), users can access real-time weather information, including temperature, wind conditions, and a summary.

While the template is designed for Slack, it can be modified to send weather updates via other communication platforms like email, Discord, or Microsoft Teams. The automation integrates with the Slack API, the OpenStreetMap API for geocoding, and the National Weather Service API for retrieving weather data, providing a convenient way for teams to stay informed about the local weather conditions.

Updated Apr 12, 2026Est. run: 26sEst. cost: $0.0703
How Latenode estimates time and cost

Latenode bills workflow runs in credits: 1 credit = 30 seconds of processing. Minimum charge per run depends on your plan. Plug-and-Play (PnP) AI nodes are billed separately—each PnP token is $1 USD, charged pay-as-you-go at vendor cost plus a small processing fee, with no API keys required.

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Workflow preview

What this template does

  • Fetches the latest 7-day weather forecast from the National Weather Service API for a specified location
  • Formats the forecast data and automatically posts detailed daily weather updates to a designated Slack channel
  • Provides users the ability to access real-time weather information, including temperature, wind conditions, and a summary, by typing a simple Slack command
  • Supports customization to send weather updates via other communication platforms like email, Discord, or Microsoft Teams
  • Integrates with the Slack API, the OpenStreetMap API for geocoding, and the National Weather Service API to deliver a convenient weather information service

How it works

1
Trigger

Receive Slack weather command

The workflow is triggered when a user types a `/weather [city]` command in the designated Slack channel. This command is received by the Latenode automation template.

2
Action

Get location coordinates

The template looks up the city name provided in the Slack command using the OpenStreetMap API to retrieve the geographic coordinates (latitude and longitude) for that location.

3
Action

Fetch weather forecast

The template then uses the geographic coordinates to fetch the latest 7-day weather forecast data from the National Weather Service API.

4
Logic

Check for detailed forecast

The template checks if a detailed 7-day weather forecast is needed. If so, it will fetch the full detailed forecast from the National Weather Service API.

5
Action

Fetch detailed 7-day forecast

The template retrieves the detailed 7-day weather forecast from the National Weather Service API for the specified location.

6
Action

Format weather data

The template processes the weather data and formats it for easy display in the Slack channel, including details like temperature, wind conditions, and a summary.

7
Action

Post to Slack channel

Finally, the formatted weather information is posted as a detailed update to the designated Slack channel, allowing users to stay informed about the local weather conditions.

Setup guide

1

Add OpenStreetMap Credential

In the Latenode Credentials panel, add an OpenStreetMap credential. Provide the API key or access tokens required to authenticate with the OpenStreetMap API.

2

Add National Weather Service Credential

In the Latenode Credentials panel, add a credential for the National Weather Service API. Enter the required API key or access tokens to authenticate with the NWS API.

3

Configure Slack Integration

In the Latenode Credentials panel, add a Slack credential. Provide the necessary OAuth access tokens or API key to authenticate with the Slack API. Then, in the Latenode builder, add a Slack node and configure the target Slack channel ID where the weather updates will be posted.

4

Set Location for Weather Lookup

In the Latenode builder, configure the National Weather Service node to fetch the weather forecast for a specific location. You can either hardcode the location (e.g., New York) or create a dynamic input field that allows users to enter the city name when triggering the workflow.

5

Configure Slack Command Trigger

In the Latenode builder, add a Slack webhook node as the trigger for the workflow. Configure the webhook to listen for the `/weather` command, with the city name as a parameter (e.g., `/weather New York`).

Requirements

Obtain an OpenStreetMap API key to enable geocoding location information
Obtain a National Weather Service API key to retrieve weather data
Set up a Slack workspace and channel to receive the weather updates
Authorize the Latenode automation to access the Slack workspace and post messages to the designated channel
For providers without a native connector in Latenode, use the JavaScript step with that service's API credentials (stored in Latenode Keys / Secrets).

FAQ

Common questions about this template

Each run uses credits on your Latenode plan. We charge for processing time (1 credit = 30 seconds). Your actual cost depends on your plan and how long the run takes. See pricing plans for plans and how credits work.
Contact support →

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