diff --git a/homeassistant/components/nws/sensor.py b/homeassistant/components/nws/sensor.py
index 1e062bf3d36..ab34781f209 100644
--- a/homeassistant/components/nws/sensor.py
+++ b/homeassistant/components/nws/sensor.py
@@ -23,6 +23,7 @@ from homeassistant.util.unit_conversion import (
     PressureConverter,
     SpeedConverter,
 )
+from homeassistant.util.unit_system import IMPERIAL_SYSTEM
 
 from . import base_unique_id, device_info
 from .const import (
@@ -80,7 +81,7 @@ class NWSSensor(CoordinatorEntity, SensorEntity):
         self.entity_description = description
 
         self._attr_name = f"{station} {description.name}"
-        if not hass.config.units.is_metric:
+        if hass.config.units is IMPERIAL_SYSTEM:
             self._attr_native_unit_of_measurement = description.unit_convert
 
     @property
diff --git a/homeassistant/components/nws/weather.py b/homeassistant/components/nws/weather.py
index 4684714d58c..7963c1161a9 100644
--- a/homeassistant/components/nws/weather.py
+++ b/homeassistant/components/nws/weather.py
@@ -107,7 +107,6 @@ class NWSWeather(WeatherEntity):
             self.coordinator_forecast = hass_data[COORDINATOR_FORECAST_HOURLY]
         self.station = self.nws.station
 
-        self.is_metric = units.is_metric
         self.mode = mode
 
         self.observation = None