How do I fix this error I am reciving in my weather api, 404?

Question

I have this code that uses thezipcodes.net to get latitude and longitude and then it puts it through api.weather.gov to get the weather. The problem is that it is screwing up in the area where it gets the points in the weather.gov API.

In getweatherforecaststuff() it returns a 404 error and is trying to set the ending to 0,0.

let lat = 0;
let long = 0;
let forecaststring = "";

function getLat(zipcode) {
  //add code here to get from api
  $.getJSON("https://thezipcodes.com/api/v1/search?zipCode=" + zipcode + "&countryCode=US&apiKey=01f2f327b789845bddf7d617257d8f76", function(data) {
    lat = data["location"][0]["latitude"];
    long = data["location"][0]["longitude"];
  });
}

function getWeatherForecastStuff() {
  $.getJSON("https://api.weather.gov/points/" + lat + "," + long + "", function(data) {
    forecaststring = data["properties"]["forecast"];
  });
}

function printStuff(forecaststrings) {
  $.getJSON(forecaststrings, function(data) {
    console.log(data);
  });
}

function getInfoNeeded() {
  zipcode = window.prompt("What is your zipcode?");
  getLat(parseInt(zipcode));
  getWeatherForecastStuff()
  printStuff(forecaststring)
}