ionic grid does not scroll code example

Example: ion-row scrolly

<ion-row class="forecast_container">
<ion-col>.......</ion-col>
<ion-col>.......</ion-col>
<ion-col>.......</ion-col>

</ion-row>

/**CSS*/
.forecast_container{
  flex-wrap: nowrap;
  overflow-x: scroll!important;
  overflow-y: hidden;
}