diff --git a/homeassistant/components/notion/const.py b/homeassistant/components/notion/const.py
index 5e89767d0e0..0961b7c10c5 100644
--- a/homeassistant/components/notion/const.py
+++ b/homeassistant/components/notion/const.py
@@ -9,6 +9,7 @@ SENSOR_DOOR = "door"
 SENSOR_GARAGE_DOOR = "garage_door"
 SENSOR_LEAK = "leak"
 SENSOR_MISSING = "missing"
+SENSOR_MOLD = "mold"
 SENSOR_SAFE = "safe"
 SENSOR_SLIDING = "sliding"
 SENSOR_SMOKE_CO = "alarm"
diff --git a/homeassistant/components/notion/sensor.py b/homeassistant/components/notion/sensor.py
index e6ff3eaab69..6f011523a2a 100644
--- a/homeassistant/components/notion/sensor.py
+++ b/homeassistant/components/notion/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
 from . import NotionEntity
-from .const import DOMAIN, SENSOR_TEMPERATURE
+from .const import DOMAIN, SENSOR_MOLD, SENSOR_TEMPERATURE
 from .model import NotionEntityDescriptionMixin
 
 
@@ -25,6 +25,12 @@ class NotionSensorDescription(SensorEntityDescription, NotionEntityDescriptionMi
 
 
 SENSOR_DESCRIPTIONS = (
+    NotionSensorDescription(
+        key=SENSOR_MOLD,
+        name="Mold risk",
+        icon="mdi:liquid-spot",
+        listener_kind=ListenerKind.MOLD,
+    ),
     NotionSensorDescription(
         key=SENSOR_TEMPERATURE,
         name="Temperature",
@@ -76,11 +82,11 @@ class NotionSensor(NotionEntity, SensorEntity):
 
     @property
     def native_value(self) -> str | None:
-        """Return the value reported by the sensor.
-
-        The Notion API only returns a localized string for temperature (e.g. "70°"); we
-        simply remove the degree symbol:
-        """
+        """Return the value reported by the sensor."""
         if not self.listener.status_localized:
             return None
-        return self.listener.status_localized.state[:-1]
+        if self.listener.listener_kind == ListenerKind.TEMPERATURE:
+            # The Notion API only returns a localized string for temperature (e.g.
+            # "70°"); we simply remove the degree symbol:
+            return self.listener.status_localized.state[:-1]
+        return self.listener.status_localized.state