Calling async functions recursively

I need to have an async method eg. getWeather called forever with a small delay between the success of previous call and beginning of the next call. I have used a recursive function for the purpose. I am concerned if this can cause a performance hit. Are there any better ways to do this?

var request = require('request');
var Promise = require('bluebird');

var delayTwoSecs = function() {
    return new Promise(function(resolve, reject) {
        setTimeout(function() {
            resolve();
        }, 2000);
    });
};

var getWeather = function() {
    return new Promise(function(resolve, reject) {
        request({
            method: 'GET',
            uri: 'http://ift.tt/1fT1uDr'
        }, function(error, response, body) {
            if (error) {
                reject(error);
            } else {
                resolve(body)
            }
        });
    });
};

var loopFetching = function() {
    getWeather()
        .then(function(response) {
            console.log(response);
            return delayTwoSecs();
        }).then(function(response) {
            loopFetching();
        });
};

loopFetching();