diff --git a/.strict-typing b/.strict-typing
index cd43c375439..ef090d3ab4d 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -149,6 +149,7 @@ homeassistant.components.dsmr.*
 homeassistant.components.dunehd.*
 homeassistant.components.duotecno.*
 homeassistant.components.easyenergy.*
+homeassistant.components.ecowitt.*
 homeassistant.components.efergy.*
 homeassistant.components.electrasmart.*
 homeassistant.components.electric_kiwi.*
diff --git a/homeassistant/components/ecowitt/__init__.py b/homeassistant/components/ecowitt/__init__.py
index 567e21b4d87..eaf2441ffac 100644
--- a/homeassistant/components/ecowitt/__init__.py
+++ b/homeassistant/components/ecowitt/__init__.py
@@ -31,7 +31,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     )
 
     @callback
-    def _stop_ecowitt(_: Event):
+    def _stop_ecowitt(_: Event) -> None:
         """Stop the Ecowitt listener."""
         webhook.async_unregister(hass, entry.data[CONF_WEBHOOK_ID])
 
diff --git a/homeassistant/components/ecowitt/entity.py b/homeassistant/components/ecowitt/entity.py
index 12fcca449c0..a5d769e6749 100644
--- a/homeassistant/components/ecowitt/entity.py
+++ b/homeassistant/components/ecowitt/entity.py
@@ -31,15 +31,15 @@ class EcowittEntity(Entity):
             sw_version=sensor.station.version,
         )
 
-    async def async_added_to_hass(self):
+    async def async_added_to_hass(self) -> None:
         """Install listener for updates later."""
 
-        def _update_state():
+        def _update_state() -> None:
             """Update the state on callback."""
             self.async_write_ha_state()
 
-        self.ecowitt.update_cb.append(_update_state)
-        self.async_on_remove(lambda: self.ecowitt.update_cb.remove(_update_state))
+        self.ecowitt.update_cb.append(_update_state)  # type: ignore[arg-type]  # upstream bug
+        self.async_on_remove(lambda: self.ecowitt.update_cb.remove(_update_state))  # type: ignore[arg-type]  # upstream bug
 
     @property
     def available(self) -> bool:
diff --git a/mypy.ini b/mypy.ini
index 361bdd63047..8c0d6823efd 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1251,6 +1251,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.ecowitt.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.efergy.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true