Android : android appwidget not updated when first time added to home screen

I'm trying to create appwidget that displays data from server. I use volley networking framework to get data from server. When I add widget first time to home screen nothings is displayed. When I remove it and add it again data are displayed. Here is my code:

public class WeatherUpdateService extends Service {

    private Weather mCurrentWeather;

    @Override
    @Deprecated
    public void onStart(final Intent intent, final int startId) {
        final RemoteViews updateViews = buildUpdate(this);
        ComponentName widget = new ComponentName(this, WeatherWidgetProvider.class);
        AppWidgetManager manager = AppWidgetManager.getInstance(this);
        manager.updateAppWidget(widget, updateViews);
    }

    @Override
    public IBinder onBind(final Intent intent) {
        return null;
    }

    public RemoteViews buildUpdate(final Context context) {

        Weather curreWeather = getForecastData();


        final StringRequest request = WeatherWebServiceImpl.getForecastRequest(apiKey, latitude, longitude, new WeatherWebServiceImpl.WeatherServiceCallbacks<String>() {

                    @Override
                    public void onServiceResponse(final String response) {
                        mCurrentWeather = JsonParser.parseCurrentWeather(response);
                    }

                    @Override
                    public void onServiceErrorResponse(final VolleyError error) {

                    }
                });
        UnwetterApplication.getRequestQueue().add(request);

        RemoteViews views = null;
        if (curreWeather != null) {
            views = new RemoteViews(getPackageName(), R.layout.home_screen_widget);
            views.setTextViewText(R.id.place, curreWeather.location.city);
        } else {
            views = new RemoteViews(getPackageName(), R.layout.widget_message);
            views.setTextViewText(R.id.message, "XXX");
        }

        return views;
    }
}

public class WeatherWidgetProvider extends AppWidgetProvider {


    @Override
    public void onUpdate(final Context context, final AppWidgetManager appWidgetManager, final int[] appWidgetIds) {
        context.startService(new Intent(context, WeatherWidgetProvider.class));
    }
}

Can somebody help me to solve this problem? Thank you for help.