My_Test_Repo/force-app/main/default/lwc/weatherApplication/weatherApplication.js

import { LightningElement } from 'lwc';

export default class WeatherApplication extends LightningElement {
    value = '';

    get options() {
        return [
            // { label: 'choose one...', value: '' },
            { label: 'one', value: '1' },
            { label: 'two', value: '2' },
            { label: 'three', value: '3' },
        ];
    }

     handleChange(event) {
        this.value = event.detail.value;
    }

}