Chance of Wrong · forecast accuracy

Daily forecast vs actual

Actual high/low are only recorded after the local calendar day has ended (so mid-day partial highs never appear as final). When our hourly samples are sparse, extremes are backfilled from Xweather historical conditions. Forecast values are from the earliest daily high/low we stored for that date (typically morning or earlier — not evening snapshots after the peak has already occurred). Evolution charts freeze the high/low once observations have recorded the extreme, so leftover evening hours do not skew the series. Click a date to open that city’s daily high/low forecast evolution charts.