diff --git a/.coveragerc b/.coveragerc
index ad3189e5126..5931322f80b 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -13,6 +13,7 @@ omit =
     homeassistant/components/abode/*
     homeassistant/components/ads/*
     homeassistant/components/air_quality/nilu.py
+    homeassistant/components/air_quality/norway_air.py
     homeassistant/components/air_quality/opensensemap.py
     homeassistant/components/alarm_control_panel/alarmdotcom.py
     homeassistant/components/alarm_control_panel/canary.py
diff --git a/homeassistant/components/air_quality/norway_air.py b/homeassistant/components/air_quality/norway_air.py
new file mode 100644
index 00000000000..d4bfbebe47a
--- /dev/null
+++ b/homeassistant/components/air_quality/norway_air.py
@@ -0,0 +1,139 @@
+"""
+Sensor for checking the air quality forecast around Norway.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/air_quality.norway_air/
+"""
+import logging
+
+from datetime import timedelta
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.air_quality import (
+    PLATFORM_SCHEMA, AirQualityEntity)
+from homeassistant.const import (CONF_LATITUDE, CONF_LONGITUDE,
+                                 CONF_NAME)
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+
+
+REQUIREMENTS = ['pyMetno==0.4.5']
+
+_LOGGER = logging.getLogger(__name__)
+
+ATTRIBUTION = "Air quality from " \
+              "https://luftkvalitet.miljostatus.no/, " \
+              "delivered by the Norwegian Meteorological Institute."
+# https://api.met.no/license_data.html
+
+CONF_FORECAST = 'forecast'
+
+DEFAULT_FORECAST = 0
+DEFAULT_NAME = 'Air quality Norway'
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Optional(CONF_FORECAST, default=DEFAULT_FORECAST): vol.Coerce(int),
+    vol.Optional(CONF_LATITUDE): cv.latitude,
+    vol.Optional(CONF_LONGITUDE): cv.longitude,
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+})
+
+SCAN_INTERVAL = timedelta(minutes=5)
+
+
+async def async_setup_platform(hass, config, async_add_entities,
+                               discovery_info=None):
+    """Set up the air_quality norway sensor."""
+    forecast = config.get(CONF_FORECAST)
+    latitude = config.get(CONF_LATITUDE, hass.config.latitude)
+    longitude = config.get(CONF_LONGITUDE, hass.config.longitude)
+    name = config.get(CONF_NAME)
+
+    if None in (latitude, longitude):
+        _LOGGER.error("Latitude or longitude not set in Home Assistant config")
+        return False
+
+    coordinates = {
+        'lat': str(latitude),
+        'lon': str(longitude),
+    }
+
+    async_add_entities([AirSensor(name, coordinates,
+                                  forecast, async_get_clientsession(hass),
+                                  )],
+                       True)
+
+
+def round_state(func):
+    """Round state."""
+    def _decorator(self):
+        res = func(self)
+        if isinstance(res, float):
+            return round(res, 2)
+        return res
+    return _decorator
+
+
+class AirSensor(AirQualityEntity):
+    """Representation of an Yr.no sensor."""
+
+    def __init__(self, name, coordinates, forecast, session):
+        """Initialize the sensor."""
+        import metno
+        self._name = name
+        self._api = metno.AirQualityData(coordinates, forecast, session)
+        self._attrs = {}
+
+    @property
+    def attribution(self) -> str:
+        """Return the attribution."""
+        return ATTRIBUTION
+
+    @property
+    def device_state_attributes(self) -> dict:
+        """Return other details about the sensor state."""
+        return {'level': self._api.data.get('level')}
+
+    @property
+    def name(self) -> str:
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    @round_state
+    def air_quality_index(self):
+        """Return the Air Quality Index (AQI)."""
+        return self._api.data.get('aqi')
+
+    @property
+    @round_state
+    def nitrogen_dioxide(self):
+        """Return the NO2 (nitrogen dioxide) level."""
+        return self._api.data.get('no2_concentration')
+
+    @property
+    @round_state
+    def ozone(self):
+        """Return the O3 (ozone) level."""
+        return self._api.data.get('o3_concentration')
+
+    @property
+    @round_state
+    def particulate_matter_2_5(self):
+        """Return the particulate matter 2.5 level."""
+        return self._api.data.get('pm25_concentration')
+
+    @property
+    @round_state
+    def particulate_matter_10(self):
+        """Return the particulate matter 10 level."""
+        return self._api.data.get('pm10_concentration')
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit of measurement of this entity, if any."""
+        return self._api.units.get('pm25_concentration')
+
+    async def async_update(self) -> None:
+        """Update the sensor."""
+        await self._api.update()
diff --git a/homeassistant/components/weather/met.py b/homeassistant/components/weather/met.py
index bab6624e9d0..c905e6b6ce3 100644
--- a/homeassistant/components/weather/met.py
+++ b/homeassistant/components/weather/met.py
@@ -18,7 +18,7 @@ from homeassistant.helpers.event import (async_track_utc_time_change,
                                          async_call_later)
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pyMetno==0.3.0']
+REQUIREMENTS = ['pyMetno==0.4.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 9f2df6894b3..271d0d5b70d 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -893,8 +893,9 @@ pyCEC==0.4.13
 # homeassistant.components.switch.tplink
 pyHS100==0.3.4
 
+# homeassistant.components.air_quality.norway_air
 # homeassistant.components.weather.met
-pyMetno==0.3.0
+pyMetno==0.4.5
 
 # homeassistant.components.rfxtrx
 pyRFXtrx==0.23