Twenty major cities, one question: what does Thursday · Thursday, August 20 hold? Open a city for its full 10-day view.
Tomorrow's forecast blends NBM, ECMWF and GFS guidance with statistical correction — day-ahead temperatures verify around 85%, precipitation around 70%.
Highs and lows cover the full calendar day (midnight to midnight local). The precip figure is the day's total; for timing, open the city's hourly page.