Weather data methodology

Forecasts use MET Norway Locationforecast or the licensed Open-Meteo customer service, identified on each page. MET Norway daily ranges use available samples; Today covers the remaining hours. These are not official full-day extrema. They are model estimates, not station measurements or warning feeds. Complete snapshots are checked for city identity, units, time continuity and local dates before activation. Optional missing values stay missing. After 120 minutes without a successful check, updates are labelled delayed; current estimates older than 90 minutes are hidden as current conditions. After 12 hours, old numbers are withheld and the page returns a temporary error. City-local IANA timezones define Today and Tomorrow. Unit conversions and forecast-high comparisons are deterministic. Source attribution and timestamps accompany each snapshot.