San Francisco should warm into the low 70s Thursday before a sunnier, hotter weekend arrives inland. Higher terrain faces elevated fire danger, while minor bayshore flooding may develop during evening high tides.

Sacramento is headed for a 104-degree weekend peak after Thursday’s triple-digit heat arrives. Dry conditions will also keep fire weather concerns elevated nearby.

Philadelphia faces a 91-degree Thursday, a Heat Advisory through Saturday, and daily storm chances that could bring heavy rain.