Portland experiences transitional weather in September with varying cloud coverage and chances of rain, as per NWS, with temperatures in the 50s to 70s range and potential thunderstorms on Sunday.

The NWS forecasts a hot, sunny day in Houston with a high near 95 degrees and a light northeast wind turning southeast. Evening temperatures will drop to 75 degrees.

San Antonio experiences high temperatures with sunny skies and southeast winds. Evenings are cooler with mostly clear skies. The consistent weather pattern shows mid-90s highs throughout the week.

Dallas faces extreme heat with highs near 96 degrees and an Ozone Action Day due to potential high ozone levels, prompting advisories for pollution reduction.

NWS New Orleans predicts a sunny week with highs in the low 90s. However, an Ozone Advisory Day warns sensitive groups of unhealthy air quality and suggests emissions-reducing actions.

Detroit's weather forecast promises a week of sunny days and mild nights with temperatures in the low eighties and calm winds, according to the National Weather Service.

The NWS Milwaukee issued a Dense Fog Advisory until 10 AM; visibility is expected to be very low in several counties. Later, conditions will clear up with a chance of nighttime thunderstorms.

Pittsburgh expects a warm, dry weekend with high pressure and no significant weather changes, including likely clear skies and temperatures above average.

Boston's weather remains sunny, peaking at 71 degrees with a warm weekend ahead. A modest 30% chance of Sunday showers exists. Despite recent rain, New England's fall foliage may be less vibrant due to ongoing drought conditions.

Phoenix's weather forecast predicts clear skies, high temperatures near 100 degrees, and occasional winds, with the warmth expected to continue into next week.

The National Weather Service forecasts a wet weekend for Orlando with heavy rain, flooding risks southeast of I-4, and a high risk of rip currents. Conditions should improve early next week.

South Florida faces heavy rain and thunderstorms, with a high chance of precipitation and temperatures up to 89°F. The wet weather is likely to continue into the night and the weekend.

Washington D.C. expects clear skies and comfortable temperatures, with highs in the low 80s and slight cooling at night per the National Weather Service.