diff --git a/esphome/components/dallas/dallas_component.cpp b/esphome/components/dallas/dallas_component.cpp
index 1eed2ebf78..6240983798 100644
--- a/esphome/components/dallas/dallas_component.cpp
+++ b/esphome/components/dallas/dallas_component.cpp
@@ -110,6 +110,9 @@ void DallasComponent::update() {
   if (!result) {
     ESP_LOGE(TAG, "Requesting conversion failed");
     this->status_set_warning();
+    for (auto *sensor : this->sensors_) {
+      sensor->publish_state(NAN);
+    }
     return;
   }