Edit in JSFiddle

angular.module('WeatherApp', [])

.controller('mainController', ['$scope', function($scope) {

  $scope.currentWeather = {
    description: 'Moc hezky',
    temperature: 24
  }

  $scope.windSpeed = 20;

}]);

<div ng-app="WeatherApp" ng-controller="mainController">

  <h2>
    Aktuální počasí: {{currentWeather.description}}
  </h2>

  <p>
    Je {{currentWeather.temperature}} stupňů, s rychlostí větru {{windSpeed}} m/s.
  </p>

  <label for="temp">Teplota: </label>
  <input type="text" ng-model="currentWeather.temperature" id="temp" name="temp">

  <br>

  <label for="wind">Rychlost větru: </label>
  <input type="text" ng-model="windSpeed" id="wind" name="wind">

</div>