diff --git a/include/rocksdb/file_system.h b/include/rocksdb/file_system.h
index e6cf8f9ce..f1159f692 100644
--- a/include/rocksdb/file_system.h
+++ b/include/rocksdb/file_system.h
@@ -701,6 +701,13 @@ class FSSequentialFile {
     return IOStatus::NotSupported("PositionedRead");
   }
 
+  // EXPERIMENTAL
+  // When available, returns the actual temperature for the file. This is
+  // useful in case some outside process moves a file from one tier to another,
+  // though the temperature is generally expected not to change while a file is
+  // open.
+  virtual Temperature GetTemperature() const { return Temperature::kUnknown; }
+
   // If you're adding methods here, remember to add them to
   // SequentialFileWrapper too.
 };
@@ -818,6 +825,13 @@ class FSRandomAccessFile {
     return IOStatus::NotSupported("InvalidateCache not supported.");
   }
 
+  // EXPERIMENTAL
+  // When available, returns the actual temperature for the file. This is
+  // useful in case some outside process moves a file from one tier to another,
+  // though the temperature is generally expected not to change while a file is
+  // open.
+  virtual Temperature GetTemperature() const { return Temperature::kUnknown; }
+
   // If you're adding methods here, remember to add them to
   // RandomAccessFileWrapper too.
 };
@@ -1102,6 +1116,13 @@ class FSRandomRWFile {
 
   virtual IOStatus Close(const IOOptions& options, IODebugContext* dbg) = 0;
 
+  // EXPERIMENTAL
+  // When available, returns the actual temperature for the file. This is
+  // useful in case some outside process moves a file from one tier to another,
+  // though the temperature is generally expected not to change while a file is
+  // open.
+  virtual Temperature GetTemperature() const { return Temperature::kUnknown; }
+
   // If you're adding methods here, remember to add them to
   // RandomRWFileWrapper too.
 
@@ -1418,6 +1439,9 @@ class FSSequentialFileWrapper : public FSSequentialFile {
                           IODebugContext* dbg) override {
     return target_->PositionedRead(offset, n, options, result, scratch, dbg);
   }
+  Temperature GetTemperature() const override {
+    return target_->GetTemperature();
+  }
 
  private:
   FSSequentialFile* target_;
@@ -1466,6 +1490,9 @@ class FSRandomAccessFileWrapper : public FSRandomAccessFile {
   IOStatus InvalidateCache(size_t offset, size_t length) override {
     return target_->InvalidateCache(offset, length);
   }
+  Temperature GetTemperature() const override {
+    return target_->GetTemperature();
+  }
 
  private:
   std::unique_ptr<FSRandomAccessFile> guard_;
@@ -1629,6 +1656,9 @@ class FSRandomRWFileWrapper : public FSRandomRWFile {
   IOStatus Close(const IOOptions& options, IODebugContext* dbg) override {
     return target_->Close(options, dbg);
   }
+  Temperature GetTemperature() const override {
+    return target_->GetTemperature();
+  }
 
  private:
   FSRandomRWFile* target_;