diff --git a/homeassistant/components/rainmachine/__init__.py b/homeassistant/components/rainmachine/__init__.py
index 4844a9e68c8..4cf32185dc9 100644
--- a/homeassistant/components/rainmachine/__init__.py
+++ b/homeassistant/components/rainmachine/__init__.py
@@ -455,9 +455,16 @@ class RainMachineEntity(Entity):
     @callback
     def _update_state(self):
         """Update the state."""
-        self.async_schedule_update_ha_state(True)
+        self.update_from_latest_data()
+        self.async_write_ha_state()
 
     async def async_will_remove_from_hass(self):
         """Disconnect dispatcher listener when removed."""
         for handler in self._dispatcher_handlers:
             handler()
+        self._dispatcher_handlers = []
+
+    @callback
+    def update_from_latest_data(self):
+        """Update the entity."""
+        raise NotImplementedError
diff --git a/homeassistant/components/rainmachine/binary_sensor.py b/homeassistant/components/rainmachine/binary_sensor.py
index 34b8de80b88..409ad0c9980 100644
--- a/homeassistant/components/rainmachine/binary_sensor.py
+++ b/homeassistant/components/rainmachine/binary_sensor.py
@@ -2,6 +2,7 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from . import RainMachineEntity
@@ -129,9 +130,15 @@ class RainMachineBinarySensor(RainMachineEntity, BinarySensorDevice):
             async_dispatcher_connect(self.hass, SENSOR_UPDATE_TOPIC, self._update_state)
         )
         await self.rainmachine.async_register_sensor_api_interest(self._api_category)
-        await self.async_update()
+        self.update_from_latest_data()
 
-    async def async_update(self):
+    async def async_will_remove_from_hass(self):
+        """Disconnect dispatcher listeners and deregister API interest."""
+        super().async_will_remove_from_hass()
+        self.rainmachine.async_deregister_sensor_api_interest(self._api_category)
+
+    @callback
+    def update_from_latest_data(self):
         """Update the state."""
         if self._sensor_type == TYPE_FLOW_SENSOR:
             self._state = self.rainmachine.data[DATA_PROVISION_SETTINGS]["system"].get(
@@ -157,8 +164,3 @@ class RainMachineBinarySensor(RainMachineEntity, BinarySensorDevice):
             self._state = self.rainmachine.data[DATA_RESTRICTIONS_CURRENT]["rainSensor"]
         elif self._sensor_type == TYPE_WEEKDAY:
             self._state = self.rainmachine.data[DATA_RESTRICTIONS_CURRENT]["weekDay"]
-
-    async def async_will_remove_from_hass(self):
-        """Disconnect dispatcher listeners and deregister API interest."""
-        super().async_will_remove_from_hass()
-        self.rainmachine.async_deregister_sensor_api_interest(self._api_category)
diff --git a/homeassistant/components/rainmachine/sensor.py b/homeassistant/components/rainmachine/sensor.py
index 8487628a32b..371ba00dfd0 100644
--- a/homeassistant/components/rainmachine/sensor.py
+++ b/homeassistant/components/rainmachine/sensor.py
@@ -1,6 +1,7 @@
 """This platform provides support for sensor data from RainMachine."""
 import logging
 
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from . import RainMachineEntity
@@ -146,9 +147,15 @@ class RainMachineSensor(RainMachineEntity):
             async_dispatcher_connect(self.hass, SENSOR_UPDATE_TOPIC, self._update_state)
         )
         await self.rainmachine.async_register_sensor_api_interest(self._api_category)
-        await self.async_update()
+        self.update_from_latest_data()
 
-    async def async_update(self):
+    async def async_will_remove_from_hass(self):
+        """Disconnect dispatcher listeners and deregister API interest."""
+        super().async_will_remove_from_hass()
+        self.rainmachine.async_deregister_sensor_api_interest(self._api_category)
+
+    @callback
+    def update_from_latest_data(self):
         """Update the sensor's state."""
         if self._sensor_type == TYPE_FLOW_SENSOR_CLICK_M3:
             self._state = self.rainmachine.data[DATA_PROVISION_SETTINGS]["system"].get(
@@ -178,8 +185,3 @@ class RainMachineSensor(RainMachineEntity):
             self._state = self.rainmachine.data[DATA_RESTRICTIONS_UNIVERSAL][
                 "freezeProtectTemp"
             ]
-
-    async def async_will_remove_from_hass(self):
-        """Disconnect dispatcher listeners and deregister API interest."""
-        super().async_will_remove_from_hass()
-        self.rainmachine.async_deregister_sensor_api_interest(self._api_category)
diff --git a/homeassistant/components/rainmachine/switch.py b/homeassistant/components/rainmachine/switch.py
index 2bf63dbf495..264de1d6782 100644
--- a/homeassistant/components/rainmachine/switch.py
+++ b/homeassistant/components/rainmachine/switch.py
@@ -6,6 +6,7 @@ from regenmaschine.errors import RequestError
 
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import ATTR_ID
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from . import RainMachineEntity
@@ -205,7 +206,8 @@ class RainMachineProgram(RainMachineSwitch):
             self.rainmachine.controller.programs.start(self._rainmachine_entity_id)
         )
 
-    async def async_update(self) -> None:
+    @callback
+    def update_from_latest_data(self) -> None:
         """Update info for the program."""
         [self._switch_data] = [
             p
@@ -269,7 +271,8 @@ class RainMachineZone(RainMachineSwitch):
             )
         )
 
-    async def async_update(self) -> None:
+    @callback
+    def update_from_latest_data(self) -> None:
         """Update info for the zone."""
         [self._switch_data] = [
             z