var messageGen = function() {
var forecastByHour = [32, 15, 19, 25, 21];
for (var i =0; i <= forecastByHour.length; i++) {
var temp = forecastByHour[i];
var message = "On the " + [i] + " hour the expected forcase is to be" + temp;
var listItems = document.createElement("li");
listItems.innerHTML = message
}
}