diff --git a/homeassistant/components/met_eireann/weather.py b/homeassistant/components/met_eireann/weather.py
index 7fa94920c74..ed226714c1d 100644
--- a/homeassistant/components/met_eireann/weather.py
+++ b/homeassistant/components/met_eireann/weather.py
@@ -53,17 +53,15 @@ async def async_setup_entry(
     coordinator = hass.data[DOMAIN][config_entry.entry_id]
     entity_registry = er.async_get(hass)
 
-    entities = [MetEireannWeather(coordinator, config_entry.data, False)]
-
-    # Add hourly entity to legacy config entries
-    if entity_registry.async_get_entity_id(
+    # Remove hourly entity from legacy config entries
+    if entity_id := entity_registry.async_get_entity_id(
         WEATHER_DOMAIN,
         DOMAIN,
         _calculate_unique_id(config_entry.data, True),
     ):
-        entities.append(MetEireannWeather(coordinator, config_entry.data, True))
+        entity_registry.async_remove(entity_id)
 
-    async_add_entities(entities)
+    async_add_entities([MetEireannWeather(coordinator, config_entry.data)])
 
 
 def _calculate_unique_id(config: MappingProxyType[str, Any], hourly: bool) -> str:
@@ -93,19 +91,15 @@ class MetEireannWeather(
         self,
         coordinator: DataUpdateCoordinator[MetEireannWeatherData],
         config: MappingProxyType[str, Any],
-        hourly: bool,
     ) -> None:
         """Initialise the platform with a data instance and site."""
         super().__init__(coordinator)
-        self._attr_unique_id = _calculate_unique_id(config, hourly)
+        self._attr_unique_id = _calculate_unique_id(config, False)
         self._config = config
-        self._hourly = hourly
-        name_appendix = " Hourly" if hourly else ""
         if (name := self._config.get(CONF_NAME)) is not None:
-            self._attr_name = f"{name}{name_appendix}"
+            self._attr_name = name
         else:
-            self._attr_name = f"{DEFAULT_NAME}{name_appendix}"
-        self._attr_entity_registry_enabled_default = not hourly
+            self._attr_name = DEFAULT_NAME
         self._attr_device_info = DeviceInfo(
             name="Forecast",
             entry_type=DeviceEntryType.SERVICE,
@@ -182,7 +176,7 @@ class MetEireannWeather(
     @property
     def forecast(self) -> list[Forecast]:
         """Return the forecast array."""
-        return self._forecast(self._hourly)
+        return self._forecast(False)
 
     @callback
     def _async_forecast_daily(self) -> list[Forecast]:
diff --git a/tests/components/met_eireann/test_weather.py b/tests/components/met_eireann/test_weather.py
index 1c938f97574..a660c18f7b3 100644
--- a/tests/components/met_eireann/test_weather.py
+++ b/tests/components/met_eireann/test_weather.py
@@ -45,22 +45,6 @@ async def test_new_config_entry(
     assert len(er.async_entries_for_config_entry(entity_registry, entry.entry_id)) == 1
 
 
-async def test_legacy_config_entry(
-    hass: HomeAssistant, entity_registry: er.EntityRegistry, mock_weather
-) -> None:
-    """Test the expected entities are created."""
-    entity_registry.async_get_or_create(
-        WEATHER_DOMAIN,
-        DOMAIN,
-        "10-20-hourly",
-    )
-    await setup_config_entry(hass)
-    assert len(hass.states.async_entity_ids("weather")) == 2
-
-    entry = hass.config_entries.async_entries()[0]
-    assert len(er.async_entries_for_config_entry(entity_registry, entry.entry_id)) == 2
-
-
 async def test_weather(hass: HomeAssistant, mock_weather) -> None:
     """Test weather entity."""
     await setup_config_entry(hass)