diff --git a/src/blackgui/models/cloudlayerlistmodel.cpp b/src/blackgui/models/cloudlayerlistmodel.cpp
index aefebf5a1..cb5d913d6 100644
--- a/src/blackgui/models/cloudlayerlistmodel.cpp
+++ b/src/blackgui/models/cloudlayerlistmodel.cpp
@@ -35,7 +35,7 @@ namespace BlackGui
                 if (dataCVariant.canConvert<double>())
                 {
                     double rate = dataCVariant.value<double>();
-                    QString formattedString = QString::number(rate) + " mm/s";
+                    QString formattedString = QString::number(rate) + " mm/h";
                     return formattedString;
                 }
                 Q_ASSERT_X(false, "CPrecipitationRateFormatter", "no double value");
diff --git a/src/blackmisc/weather/cloudlayer.h b/src/blackmisc/weather/cloudlayer.h
index 12dff0047..636125777 100644
--- a/src/blackmisc/weather/cloudlayer.h
+++ b/src/blackmisc/weather/cloudlayer.h
@@ -102,10 +102,10 @@ namespace BlackMisc
             //! Get layer top
             BlackMisc::Aviation::CAltitude getTop() const { return m_top; }
 
-            //! Set precipitation rate
+            //! Set precipitation rate in mm/h
             void setPrecipitationRate(double rate) { m_precipitationRate = rate; }
 
-            //! Get precipitation rate
+            //! Get precipitation rate in mm/h
             double getPrecipitationRate() const { return m_precipitationRate; }
 
             //! Set precipitation
@@ -144,7 +144,7 @@ namespace BlackMisc
         private:
             BlackMisc::Aviation::CAltitude m_base;
             BlackMisc::Aviation::CAltitude m_top;
-            double m_precipitationRate = 0;
+            double m_precipitationRate = 0; //!< Unit mm/h
             Precipitation m_precipitation = NoPrecipitation;
             Clouds m_clouds = NoClouds;
             int m_coveragePercent;
diff --git a/src/plugins/weatherdata/gfs/weatherdatagfs.cpp b/src/plugins/weatherdata/gfs/weatherdatagfs.cpp
index 6ee08fbe0..b7c43ad09 100644
--- a/src/plugins/weatherdata/gfs/weatherdatagfs.cpp
+++ b/src/plugins/weatherdata/gfs/weatherdatagfs.cpp
@@ -297,7 +297,10 @@ namespace BlackWxPlugin
                     cloudLayer.setCoveragePercent(cloudLayerIt.value().totalCoverage);
                     if (gfsGridPoint.surfaceSnow > 0.0) { cloudLayer.setPrecipitation(CCloudLayer::Snow); }
                     if (gfsGridPoint.surfaceRain > 0.0) { cloudLayer.setPrecipitation(CCloudLayer::Rain); }
-                    cloudLayer.setPrecipitationRate(gfsGridPoint.surfacePrecipitationRate);
+
+                    // Precipitation rate is in kg m-2 s-1, which is equal to mm/s
+                    // Multiply with 3600 to convert to mm/h
+                    cloudLayer.setPrecipitationRate(gfsGridPoint.surfacePrecipitationRate * 3600.0);
                     cloudLayer.setClouds(CCloudLayer::CloudsUnknown);
                     cloudLayers.insert(cloudLayer);
                 }