Dangerous heat returns to close out the week.

Heat indices are expected to range from 100 to 105 degrees, which falls within the dangerous category.

OVERNIGHT: Mostly clear, mild. Lows near 70 degrees.

THURSDAY: Sunny, very warm, more humid. Highs in the upper 80s. Feels like low 90s. Lows in the low 70s.

FRIDAY: A slight chance for showers and thunderstorms late in the morning. Then, brief clearing, hot and humid with a chance for thunderstorms late in the afternoon and the evening. Highs in the low-to-mid 90s. Feels-like 100-105 degrees. Lows in the low 70s.

SATURDAY: Partly sunny, very warm but not as humid. Highs in the mid-to-upper 80s. Lows in the low 70s.

SUNDAY: Partly sunny, not as hot, still humid. There is a chance for rain showers and thunderstorms. Highs in the low 80s. Lows in the upper 60s.