openweather-apis and n00b mobx

Locations.js

import {decorate, observable, action} from 'mobx';
import weather from 'openweather-apis';

class Locations {

    all = [
        {
            'id': 'fb3faf1a-1039-49f6-9ced-48dd9b5c1462',
            'latitude': 33.9434136,
            'longitude': -84.7758044,
            'label': '1550 E Paulding Dr, Dallas, GA',
            'name': 'Mt Tabor Park'
        },
        {
            'id': 'b5a039b2-6520-44a8-937d-543f3b2750da',
            'latitude': 34.0212248,
            'longitude': -84.7198592,
            'label': '5690 Old Stilesboro Rd NW, Acworth, GA',
            'name': 'Allatoona Creek Park'
        },
        {
            'id': '85530076-6593-4acb-9107-277bd2ffcecd',
            'latitude': 34.1615684,
            'longitude': -84.5419473,
            'label': '2261 Sixes Rd, Canton, GA',
            'name': 'Blankets Creek Mountain Bike Trails',
        },
        {
            'id': '920b96cd-e2b8-4315-b9a1-726c903cc072',
            'latitude': 33.9331037,
            'longitude': -84.8261743,
            'label': '216 Recreation Dr, Dallas, GA',
            'name': 'Sara Babb Park'
        }
    ];

    weatherData = [];

    loadWeather = () => {
        weather.setLang('eng');
        for (let i = 0; i < this.all.length; i++) {
            weather.setCoordinate(this.all[i].latitude, this.all[i].longitude);
            weather.setAPPID('');
            weather.getAllWeather((err, JSONObj) => {
                (!err) ? this.setWeather(JSONObj) : console.log('Error: ', err);
            });
        }
    };

    setWeather = action((data) => {
        this.weatherData.push(data);
    });
}

decorate(Locations, {
    all: observable,
    weatherData: observable
});

export default new Locations();