The config I have just tested with:
{
module: "MMM-Hive",
position: "top_right",
header: "Hive",
config: {
username: '',
password: '',
postcode: '',
updateInterval: 10 * 60000,
outsideUrl: 'http://weather-prod.bgchprod.info/weather?postcode=',
temperatureSuffix: ' °C',
showNext: true,
highestTemp: '30',
highTemp: '25',
lowTemp: '20',
lowestTemp: '15',
animatedLoading: true,
debug: true,
},