Phoenix reaches 100 degrees Tuesday before late-week storm chances return. Labor Day is shaping up even hotter.

San Antonio will trade a cloudy, muggy start for a 99-degree afternoon Tuesday, with the heat index climbing to 104 and only slim rain chances.

El Paso climbs to 97°F Tuesday, with a small afternoon chance for showers and thunderstorms. The heat sticks around as storm chances increase later in the week.

Portland’s Tuesday stays mostly dry, but a much wetter pattern arrives Wednesday. Thunderstorms could join the forecast Thursday.

Denver will warm from 87 degrees Tuesday to the low 90s through Friday. Afternoon storm chances return Sunday and Labor Day.

Seattle gets a mild Tuesday before a strong rain and wind system moves in Wednesday. Showers and cooler temperatures are expected through Labor Day.

Dallas faces a 101-degree Tuesday and an Ozone Action Day before storm chances increase Wednesday and Thursday. The heat returns for Labor Day.

New Orleans gets a clear, muggy start Tuesday before storms build by late morning. The wet pattern sticks around through Labor Day.

Milwaukee faces a hot, muggy Tuesday with patchy fog and only a slight shower chance. Storm chances increase later this week as temperatures ease.

Minneapolis could hit 89 degrees Tuesday before rain showers arrive overnight. Storm chances linger into the Labor Day weekend.

Clear skies will give way to a near-100-degree Tuesday in Oklahoma City, with hot, mostly dry conditions sticking around through Labor Day.

Austin will hit 99 degrees Tuesday, with heat indexes near 104 before storm chances return after lunch. Rain risks increase Wednesday through Friday, but the heat sticks around through Labor Day.

Knoxville is headed for a hot, sunny stretch with highs near 100 through Friday. Limited storm chances return this weekend.