diff --git a/.coveragerc b/.coveragerc
index d3f142d6efe..d0a3f34223a 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -314,6 +314,7 @@ omit =
     homeassistant/components/thermostat/proliphix.py
     homeassistant/components/thermostat/radiotherm.py
     homeassistant/components/upnp.py
+    homeassistant/components/weather/openweathermap.py
     homeassistant/components/zeroconf.py
 
 
diff --git a/homeassistant/components/weather/__init__.py b/homeassistant/components/weather/__init__.py
new file mode 100644
index 00000000000..dcb5dc49233
--- /dev/null
+++ b/homeassistant/components/weather/__init__.py
@@ -0,0 +1,129 @@
+"""
+Weather component that handles meteorological data for your location.
+
+For more details about this component, please refer to the documentation at
+https://home-assistant.io/components/weather/
+"""
+import logging
+
+from homeassistant.helpers.entity_component import EntityComponent
+from homeassistant.util.temperature import convert as convert_temperature
+from homeassistant.helpers.config_validation import PLATFORM_SCHEMA  # noqa
+from homeassistant.helpers.entity import Entity
+
+_LOGGER = logging.getLogger(__name__)
+
+DEPENDENCIES = []
+DOMAIN = 'weather'
+
+ENTITY_ID_FORMAT = DOMAIN + '.{}'
+
+ATTR_CONDITION_CLASS = 'condition_class'
+ATTR_WEATHER_ATTRIBUTION = 'attribution'
+ATTR_WEATHER_HUMIDITY = 'humidity'
+ATTR_WEATHER_OZONE = 'ozone'
+ATTR_WEATHER_PRESSURE = 'pressure'
+ATTR_WEATHER_TEMPERATURE = 'temperature'
+ATTR_WEATHER_WIND_BEARING = 'wind_bearing'
+ATTR_WEATHER_WIND_SPEED = 'wind_speed'
+
+
+def setup(hass, config):
+    """Setup the weather component."""
+    component = EntityComponent(_LOGGER, DOMAIN, hass)
+    component.setup(config)
+
+    return True
+
+
+# pylint: disable=no-member, no-self-use, too-many-return-statements
+class WeatherEntity(Entity):
+    """ABC for a weather data."""
+
+    @property
+    def temperature(self):
+        """Return the platform temperature."""
+        raise NotImplementedError()
+
+    @property
+    def temperature_unit(self):
+        """Return the unit of measurement."""
+        raise NotImplementedError()
+
+    @property
+    def pressure(self):
+        """Return the pressure."""
+        return None
+
+    @property
+    def humidity(self):
+        """Return the humidity."""
+        raise NotImplementedError()
+
+    @property
+    def wind_speed(self):
+        """Return the wind speed."""
+        return None
+
+    @property
+    def wind_bearing(self):
+        """Return the wind bearing."""
+        return None
+
+    @property
+    def ozone(self):
+        """Return the ozone level."""
+        return None
+
+    @property
+    def attribution(self):
+        """Return the attribution."""
+        return None
+
+    @property
+    def state_attributes(self):
+        """Return the state attributes."""
+        data = {
+            ATTR_WEATHER_TEMPERATURE:
+                convert_temperature(
+                    self.temperature, self.temperature_unit,
+                    self.hass.config.units.temperature_unit),
+            ATTR_WEATHER_HUMIDITY: self.humidity,
+        }
+
+        ozone = self.ozone
+        if ozone is not None:
+            data[ATTR_WEATHER_OZONE] = ozone
+
+        pressure = self.pressure
+        if pressure is not None:
+            data[ATTR_WEATHER_PRESSURE] = pressure
+
+        wind_bearing = self.wind_bearing
+        if wind_bearing is not None:
+            data[ATTR_WEATHER_WIND_BEARING] = wind_bearing
+
+        wind_speed = self.wind_speed
+        if wind_speed is not None:
+            data[ATTR_WEATHER_WIND_SPEED] = wind_speed
+
+        attribution = self.attribution
+        if attribution is not None:
+            data[ATTR_WEATHER_ATTRIBUTION] = attribution
+
+        return data
+
+    @property
+    def state(self):
+        """Return the current state."""
+        return self.condition
+
+    @property
+    def condition(self):
+        """Return the current condition."""
+        raise NotImplementedError()
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit of measurement."""
+        return None
diff --git a/homeassistant/components/weather/demo.py b/homeassistant/components/weather/demo.py
new file mode 100644
index 00000000000..dec4dcf2450
--- /dev/null
+++ b/homeassistant/components/weather/demo.py
@@ -0,0 +1,95 @@
+"""
+Demo platform that offers fake meteorological data.
+
+For more details about this platform, please refer to the documentation
+https://home-assistant.io/components/demo/
+"""
+from homeassistant.components.weather import WeatherEntity
+from homeassistant.const import (TEMP_CELSIUS, TEMP_FAHRENHEIT)
+
+CONDITION_CLASSES = {
+    'cloudy': [],
+    'fog': [],
+    'hail': [],
+    'lightning': [],
+    'lightning-rainy': [],
+    'partlycloudy': [],
+    'pouring': [],
+    'rainy': ['shower rain'],
+    'snowy': [],
+    'snowy-rainy': [],
+    'sunny': ['sunshine'],
+    'windy': [],
+    'windy-variant': [],
+    'exceptional': [],
+}
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup the Demo weather."""
+    add_devices([
+        DemoWeather('South', 'Sunshine', 21, 92, 1099, 0.5, TEMP_CELSIUS),
+        DemoWeather('North', 'Shower rain', -12, 54, 987, 4.8, TEMP_FAHRENHEIT)
+    ])
+
+
+# pylint: disable=too-many-arguments
+class DemoWeather(WeatherEntity):
+    """Representation of a weather condition."""
+
+    def __init__(self, name, condition, temperature, humidity, pressure,
+                 wind_speed, temperature_unit):
+        """Initialize the Demo weather."""
+        self._name = name
+        self._condition = condition
+        self._temperature = temperature
+        self._temperature_unit = temperature_unit
+        self._humidity = humidity
+        self._pressure = pressure
+        self._wind_speed = wind_speed
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return '{} {}'.format('Demo Weather', self._name)
+
+    @property
+    def should_poll(self):
+        """No polling needed for a demo weather condition."""
+        return False
+
+    @property
+    def temperature(self):
+        """Return the temperature."""
+        return self._temperature
+
+    @property
+    def temperature_unit(self):
+        """Return the unit of measurement."""
+        return self._temperature_unit
+
+    @property
+    def humidity(self):
+        """Return the humidity."""
+        return self._humidity
+
+    @property
+    def wind_speed(self):
+        """Return the wind speed."""
+        return self._wind_speed
+
+    @property
+    def pressure(self):
+        """Return the wind speed."""
+        return self._pressure
+
+    @property
+    def condition(self):
+        """Return the weather condition."""
+        return [k for k, v in CONDITION_CLASSES.items() if
+                self._condition.lower() in v][0]
+
+    @property
+    def attribution(self):
+        """Return the attribution."""
+        return 'Powered by Home Assistant'
diff --git a/homeassistant/components/weather/openweathermap.py b/homeassistant/components/weather/openweathermap.py
new file mode 100644
index 00000000000..4133509de89
--- /dev/null
+++ b/homeassistant/components/weather/openweathermap.py
@@ -0,0 +1,159 @@
+"""
+Support for the OpenWeatherMap (OWM) service.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/weather.openweathermap/
+"""
+import logging
+from datetime import timedelta
+
+import voluptuous as vol
+
+from homeassistant.components.weather import WeatherEntity, PLATFORM_SCHEMA
+from homeassistant.const import (
+    CONF_API_KEY, CONF_NAME, CONF_LATITUDE, CONF_LONGITUDE, STATE_UNKNOWN)
+import homeassistant.helpers.config_validation as cv
+from homeassistant.util import Throttle
+
+REQUIREMENTS = ['pyowm==2.5.0']
+
+_LOGGER = logging.getLogger(__name__)
+
+DEFAULT_NAME = 'OpenWeatherMap'
+ATTRIBUTION = 'Data provided by OpenWeatherMap'
+
+MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=10)
+
+CONDITION_CLASSES = {
+    'cloudy': [804],
+    'fog': [701, 741],
+    'hail': [906],
+    'lightning': [210, 211, 212, 221],
+    'lightning-rainy': [200, 201, 202, 230, 231, 232],
+    'partlycloudy': [801, 802, 803],
+    'pouring': [504, 314, 502, 503, 522],
+    'rainy': [300, 301, 302, 310, 311, 312, 313, 500, 501, 520, 521],
+    'snowy': [600, 601, 602, 611, 612, 620, 621, 622],
+    'snowy-rainy': [511, 615, 616],
+    'sunny': [800],
+    'windy': [905, 951, 952, 953, 954, 955, 956, 957],
+    'windy-variant': [958, 959, 960, 961],
+    'exceptional': [711, 721, 731, 751, 761, 762, 771, 900, 901, 962, 903,
+                    904],
+}
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_API_KEY): cv.string,
+    vol.Optional(CONF_LATITUDE): cv.latitude,
+    vol.Optional(CONF_LONGITUDE): cv.longitude,
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+})
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup the OpenWeatherMap weather platform."""
+    import pyowm
+
+    longitude = config.get(CONF_LONGITUDE, round(hass.config.longitude, 5))
+    latitude = config.get(CONF_LATITUDE, round(hass.config.latitude, 5))
+    name = config.get(CONF_NAME)
+
+    try:
+        owm = pyowm.OWM(config.get(CONF_API_KEY))
+    except pyowm.exceptions.api_call_error.APICallError:
+        _LOGGER.error("Error while connecting to OpenWeatherMap")
+        return False
+
+    data = WeatherData(owm, latitude, longitude)
+
+    add_devices([OpenWeatherMapWeather(
+        name, data, hass.config.units.temperature_unit)])
+
+
+# pylint: disable=too-few-public-methods
+class OpenWeatherMapWeather(WeatherEntity):
+    """Implementation of an OpenWeatherMap sensor."""
+
+    def __init__(self, name, owm, temperature_unit):
+        """Initialize the sensor."""
+        self._name = name
+        self._owm = owm
+        self._temperature_unit = temperature_unit
+        self.date = None
+        self.update()
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    def condition(self):
+        """Return the current condition."""
+        try:
+            return [k for k, v in CONDITION_CLASSES.items() if
+                    self.data.get_weather_code() in v][0]
+        except IndexError:
+            return STATE_UNKNOWN
+
+    @property
+    def temperature(self):
+        """Return the temperature."""
+        return self.data.get_temperature('celsius')['temp']
+
+    @property
+    def temperature_unit(self):
+        """Return the unit of measurement."""
+        return self._temperature_unit
+
+    @property
+    def pressure(self):
+        """Return the pressure."""
+        return self.data.get_pressure()['press']
+
+    @property
+    def humidity(self):
+        """Return the humidity."""
+        return self.data.get_humidity()
+
+    @property
+    def wind_speed(self):
+        """Return the wind speed."""
+        return self.data.get_wind()['speed']
+
+    @property
+    def wind_bearing(self):
+        """Return the wind bearing."""
+        return self.data.get_wind()['deg']
+
+    @property
+    def attribution(self):
+        """Return the attribution."""
+        return ATTRIBUTION
+
+    # pylint: disable=too-many-branches
+    def update(self):
+        """Get the latest data from OWM and updates the states."""
+        self._owm.update()
+        self.data = self._owm.data
+
+
+class WeatherData(object):
+    """Get the latest data from OpenWeatherMap."""
+
+    def __init__(self, owm, latitude, longitude):
+        """Initialize the data object."""
+        self.owm = owm
+        self.latitude = latitude
+        self.longitude = longitude
+        self.data = None
+
+    @Throttle(MIN_TIME_BETWEEN_UPDATES)
+    def update(self):
+        """Get the latest data from OpenWeatherMap."""
+        obs = self.owm.weather_at_coords(self.latitude, self.longitude)
+        if obs is None:
+            _LOGGER.warning("Failed to fetch data from OWM")
+            return
+
+        self.data = obs.get_weather()
diff --git a/requirements_all.txt b/requirements_all.txt
index fd454ba809e..5ec6876efaa 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -384,6 +384,7 @@ pynetio==0.1.6
 pynx584==0.2
 
 # homeassistant.components.sensor.openweathermap
+# homeassistant.components.weather.openweathermap
 pyowm==2.5.0
 
 # homeassistant.components.switch.acer_projector
diff --git a/tests/components/weather/__init__.py b/tests/components/weather/__init__.py
new file mode 100644
index 00000000000..24df7abb1f3
--- /dev/null
+++ b/tests/components/weather/__init__.py
@@ -0,0 +1 @@
+"""The tests for Weather platforms."""
diff --git a/tests/components/weather/test_weather.py b/tests/components/weather/test_weather.py
new file mode 100644
index 00000000000..97aaf0f6486
--- /dev/null
+++ b/tests/components/weather/test_weather.py
@@ -0,0 +1,57 @@
+"""The tests for the Weather component."""
+import unittest
+
+from homeassistant.components import weather
+from homeassistant.components.weather import (
+    ATTR_WEATHER_ATTRIBUTION, ATTR_WEATHER_HUMIDITY, ATTR_WEATHER_OZONE,
+    ATTR_WEATHER_PRESSURE, ATTR_WEATHER_TEMPERATURE, ATTR_WEATHER_WIND_BEARING,
+    ATTR_WEATHER_WIND_SPEED)
+from homeassistant.util.unit_system import METRIC_SYSTEM
+from homeassistant.bootstrap import setup_component
+
+from tests.common import get_test_home_assistant
+
+
+class TestWeather(unittest.TestCase):
+    """Test the Weather component."""
+
+    def setUp(self):
+        """Setup things to be run when tests are started."""
+        self.hass = get_test_home_assistant()
+        self.hass.config.units = METRIC_SYSTEM
+        self.assertTrue(setup_component(self.hass, weather.DOMAIN, {
+            'weather': {
+                'platform': 'demo',
+            }
+        }))
+
+    def tearDown(self):
+        """Stop down everything that was started."""
+        self.hass.stop()
+
+    def test_attributes(self):
+        """Test weather attributes."""
+        state = self.hass.states.get('weather.demo_weather_south')
+        assert state is not None
+
+        assert state.state == 'sunny'
+
+        data = state.attributes
+        assert data.get(ATTR_WEATHER_TEMPERATURE) == 21
+        assert data.get(ATTR_WEATHER_HUMIDITY) == 92
+        assert data.get(ATTR_WEATHER_PRESSURE) == 1099
+        assert data.get(ATTR_WEATHER_WIND_SPEED) == 0.5
+        assert data.get(ATTR_WEATHER_WIND_BEARING) is None
+        assert data.get(ATTR_WEATHER_OZONE) is None
+        assert data.get(ATTR_WEATHER_ATTRIBUTION) == \
+            'Powered by Home Assistant'
+
+    def test_temperature_convert(self):
+        """Test temperature conversion."""
+        state = self.hass.states.get('weather.demo_weather_north')
+        assert state is not None
+
+        assert state.state == 'rainy'
+
+        data = state.attributes
+        assert data.get(ATTR_WEATHER_TEMPERATURE) == -24.4