home-assistant.io/source/_components/sensor.wunderground.markdown

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---
layout: page
title: "Weather Underground (WUnderground)"
description: "Instructions how to integrate Weather Underground (WUnderground) Weather within Home Assistant."
date: 2016-08-18
sidebar: true
comments: false
sharing: true
footer: true
logo: wunderground.png
ha_category: Weather
ha_release: 0.27
ha_iot_class: "Cloud Polling"
---
The `wunderground` platform uses [Weather Underground](http://www.wunderground.com) as a source for current weather information.
<p class='note warning'>
Obtain a WUnderground API key [here](https://www.wunderground.com/weather/api). A free account allows 500 requests per day or 10 per minute.
</p>
To add Wunderground to your installation, add the following to your `configuration.yaml` file:
```yaml
# Example configuration.yaml entry
sensor:
- platform: wunderground
api_key: your_api_key
monitored_conditions:
- alerts
- dewpoint_c
- dewpoint_f
- dewpoint_string
- feelslike_c
- feelslike_f
- feelslike_string
- heat_index_c
- heat_index_f
- heat_index_string
- elevation
- location
- observation_time
- precip_1hr_in
- precip_1hr_metric
- precip_1hr_string
- precip_today_in
- precip_today_metric
- precip_today_string
- pressure_in
- pressure_mb
- pressure_trend
- relative_humidity
- station_id
- solarradiation
- temperature_string
- temp_c
- temp_f
- UV
- visibility_km
- visibility_mi
- weather
- wind_degrees
- wind_dir
- wind_gust_kph
- wind_gust_mph
- wind_kph
- wind_mph
- wind_string
```
Configuration variables:
- **api_key** (Required): See above.
- **pws_id** (Optional): You can enter a Personal Weather Station ID. The current list of Wunderground PWS stations is available [here](https://www.wunderground.com/weatherstation/ListStations.asp). If you do not enter a PWS ID, the current location information (latitude and longitude) from your `configuration.yaml` will be used to display weather conditions.
- **lang** (Optional): Specify the language that the API returns. The current list of all Wunderground language codes is available [here](https://www.wunderground.com/weather/api/d/docs?d=language-support). If not specified, it defaults to English (EN).
- **monitored_conditions** array (*Required*): Conditions to display in the frontend. The following conditions can be monitored.
- **alerts**: Current severe weather advisories
- **dewpoint_c**: Temperature in Celsius below which water droplets begin to condense and dew can form
- **dewpoint_f**: Temperature in Fahrenheit below which water droplets begin to condense and dew can form
- **dewpoint_string**: Text summary of dew point
- **feelslike_c**: Feels like (or apparent) temperature in Celsius
- **feelslike_f**: Feels like (or apparent) temperature in Fahrenheit
- **feelslike_string**: Text summary of how the current temperature feels like
- **heat_index_c**: Heat index (combined effects of the temperature and humidity of the air) in Celsius
- **heat_index_f**: Heat index (combined effects of the temperature and humidity of the air) in Fahrenheit
- **heat_index_string**: Text summary of current heat index
- **elevation**: Elevation in feet
- **location**: City and State
- **observation_time**: Text summary of observation time
- **precip_today_in**: Total precipitation in inches
- **precip_today_metric**: Total precipitation in metric units
- **precip_today_string**: Text summary of precipitation today
- **pressure_in**: Atmospheric air pressure in inches
- **pressure_mb**: Atmospheric air pressure in millibars
- **pressure_trend**: Atmospheric air presure trend signal (+/-)
- **relative_humidity**: Relative humidity
- **station_id**: Your personal weather station (PWS) ID
- **solarradiation**: Current levels of solar radiation
- **temperature_string**: Temperature text combinding Fahrenheit and Celsius
- **temp_c**: Current temperature in Celsius
- **temp_f**: Current temperature in Fahrenheit
- **UV**: Current levels of UV radiation. See [here](https://www.wunderground.com/resources/health/uvindex.asp) for explanation.
- **visibility_km**: Average visibility in km
- **visibility_mi**: Average visibility in miles
- **weather**: A human-readable text summary with picture from Wunderground.
- **wind_degrees**: Wind degrees
- **wind_dir**: Wind direction
- **wind_gust_kph**: Wind gusts speed in kph
- **wind_gust_mph**: Wind gusts speed in mph
- **wind_kph**: Current wind speed in kph
- **wind_mph**: Current wind speed in mph
- **wind_string**: Text summary of current wind conditions
All the conditions listed above will be updated each 5 minutes with exception of `alerts` that will be updated each 15 minutes by default.
Additional details about the API are available [here](https://www.wunderground.com/weather/api/d/docs).