langchain/docs/integrations/openweathermap.md

OpenWeatherMap

OpenWeatherMap provides all essential weather data for a specific location:

• Current weather
• Minute forecast for 1 hour
• Hourly forecast for 48 hours
• Daily forecast for 8 days
• National weather alerts
• Historical weather data for 40+ years back

This page covers how to use the OpenWeatherMap API within LangChain.

Installation and Setup

• Install requirements with

pip install pyowm

• Go to OpenWeatherMap and sign up for an account to get your API key here
• Set your API key as OPENWEATHERMAP_API_KEY environment variable

Wrappers

Utility

There exists a OpenWeatherMapAPIWrapper utility which wraps this API. To import this utility:

from langchain.utilities.openweathermap import OpenWeatherMapAPIWrapper

For a more detailed walkthrough of this wrapper, see this notebook.

Tool

You can also easily load this wrapper as a Tool (to use with an Agent). You can do this with:

from langchain.agents import load_tools
tools = load_tools(["openweathermap-api"])

For more information on this, see this page