diff --git a/improver/calibration/rainforest_calibration.py b/improver/calibration/rainforest_calibration.py
index f8d9d3ddf4..97dd055985 100644
--- a/improver/calibration/rainforest_calibration.py
+++ b/improver/calibration/rainforest_calibration.py
@@ -443,7 +443,7 @@ def _evaluate_probabilities(
                 if np.any(forecast_bool):
                     input_subset = self.model_input_converter(input_data[forecast_bool])
                     prediction[forecast_bool] = model.predict(input_subset)
-            prediction = np.minimum(np.maximum(prediction, 0), 1)
+
             output_data[threshold_index, :] = np.reshape(
                 prediction, output_data.shape[1:]
             )