Detroit's weather this week features a mix of rain, thunderstorms, and sunny skies, with fluctuating temperatures and chances of precipitation varying day to day.

Milwaukee residents can expect a mix of weather today, including early rain and thunderstorms, clearing later for a mostly sunny day with highs near 86°F and light winds. Showers may return at night with a low of 67°F.

The National Weather Service issued an extreme heat warning for southeast Louisiana and southern Mississippi with heat index values up to 114 degrees.

San Antonio faces a week of intense heat, with temperatures nearing 100 degrees and little chance of significant rain or cooldowns, according to the National Weather Service.

Boston faces a heatwave with a peak heat index of 101, prompting advisories for heat-related illnesses and suggesting caution for possible thunderstorms and rain-induced flooding later in the week.

Miami is expecting high temperatures with a mostly sunny sky and a slight chance of showers, continuing a summer pattern with possible Saharan dust storms arriving after the weekend.

Philadelphia faces a heat wave with temperatures nearing 99 degrees and a heat advisory in effect. The city anticipates high heat indices, poor air quality, and potential relief with predicted rain and thunderstorms.

New York City faces a heatwave with temperatures reaching the high nineties, and the National Weather Service issuing heat advisories and warnings. Residents are advised to stay hydrated and cautious.

Pittsburgh is under a Heat Advisory with temperatures in the lower 90s and heat index near 100F. Isolated showers or thunderstorms are possible with cooler temperatures expected later in the week.

The National Weather Service forecasts a hot week for Ohio, with high temperatures and reduced thunderstorm threat, before a cold front brings relief mid-week.

Charlotte faces a heat advisory with the potential for severe thunderstorms and high heat index values; residents are advised to take precautions against heat illnesses.

Washington D.C. faces a heatwave with the heat index reaching up to 104 degrees, leading to possible heat-related illnesses and prompting preparations like cooling shelters.

The National Weather Service issued an extreme heat warning for several counties around Tampa, with index values over 112 degrees, advising caution against heat-related illnesses.