diff --git a/homeassistant/components/environment_canada/weather.py b/homeassistant/components/environment_canada/weather.py
index a5acb224bd0..c7d04e4c03d 100644
--- a/homeassistant/components/environment_canada/weather.py
+++ b/homeassistant/components/environment_canada/weather.py
@@ -123,7 +123,7 @@ class ECWeatherEntity(
         self._attr_device_info = coordinator.device_info
 
     @property
-    def native_temperature(self):
+    def native_temperature(self) -> float | None:
         """Return the temperature."""
         if (
             temperature := self.ec_data.conditions.get("temperature", {}).get("value")
@@ -138,42 +138,42 @@ class ECWeatherEntity(
         return None
 
     @property
-    def humidity(self):
+    def humidity(self) -> float | None:
         """Return the humidity."""
         if self.ec_data.conditions.get("humidity", {}).get("value"):
             return float(self.ec_data.conditions["humidity"]["value"])
         return None
 
     @property
-    def native_wind_speed(self):
+    def native_wind_speed(self) -> float | None:
         """Return the wind speed."""
         if self.ec_data.conditions.get("wind_speed", {}).get("value"):
             return float(self.ec_data.conditions["wind_speed"]["value"])
         return None
 
     @property
-    def wind_bearing(self):
+    def wind_bearing(self) -> float | None:
         """Return the wind bearing."""
         if self.ec_data.conditions.get("wind_bearing", {}).get("value"):
             return float(self.ec_data.conditions["wind_bearing"]["value"])
         return None
 
     @property
-    def native_pressure(self):
+    def native_pressure(self) -> float | None:
         """Return the pressure."""
         if self.ec_data.conditions.get("pressure", {}).get("value"):
             return float(self.ec_data.conditions["pressure"]["value"])
         return None
 
     @property
-    def native_visibility(self):
+    def native_visibility(self) -> float | None:
         """Return the visibility."""
         if self.ec_data.conditions.get("visibility", {}).get("value"):
             return float(self.ec_data.conditions["visibility"]["value"])
         return None
 
     @property
-    def condition(self):
+    def condition(self) -> str | None:
         """Return the weather condition."""
         icon_code = None
 
@@ -186,7 +186,7 @@ class ECWeatherEntity(
 
         if icon_code:
             return icon_code_to_condition(int(icon_code))
-        return ""
+        return None
 
     @callback
     def _async_forecast_daily(self) -> list[Forecast] | None:
@@ -261,7 +261,7 @@ def get_forecast(ec_data, hourly) -> list[Forecast] | None:
     return forecast_array
 
 
-def icon_code_to_condition(icon_code):
+def icon_code_to_condition(icon_code: int) -> str | None:
     """Return the condition corresponding to an icon code."""
     for condition, codes in ICON_CONDITION_MAP.items():
         if icon_code in codes: