The NWS forecast for Washington D.C. includes isolated showers today, partly cloudy skies overnight, and a hot week ahead with highs up to 95 degrees.

Orlando faces high temperatures with heat indices reaching 102-107 degrees, but increased rain could provide relief despite the potential for strong winds and lightning.

Improving air quality in Boston as haze lifts, with NBC Boston forecasting clearer skies and a warm-up, while the National Weather Service predicts sunny conditions with temperatures nearing 90 degrees.

The National Weather Service reports hot days with showers and thunderstorms in Tampa, with high temperatures and a consistent pattern of rain expected for the next week.

New York City enjoys a mild summer with detailed weather forecasts for each borough indicating sunny skies and gradually rising temperatures, with no hazardous weather expected.

Philadelphia's forecast predicts pleasant temperatures, mostly sunny days, and mild evenings with occasional clouds and gentle breezes for the coming week.

Mixed weather conditions are forecasted for Baltimore, with stability from a high-pressure system being challenged by moisture from a low-pressure system, potentially resulting in weekend rainfall and minor coastal flooding.

The National Weather Service predicts mostly sunny skies and calm breezes for St. Louis with highs around 90 degrees, turning partly cloudy with slight chances of thunderstorms and warmer temperatures in the following days.

The NWS predicts steady weather in Knoxville with chances of showers and thunderstorms, mostly sunny days, calm winds, and temperatures in the high-80s.

Alameda County has successfully eradicated a Mediterranean fruit fly infestation, lifting a quarantine after collaborative efforts using sterile male flies and organic treatments.

An air quality alert is issued in Chicago due to Canadian wildfire smoke and high ozone levels, prompting health precautions for those with respiratory issues.

The LAFD offers advice on its website for Los Angeles residents to stay safe during a heatwave, with tips on clothing, home cooling, hydration, and monitoring the vulnerable.

Canadian wildfires cause poor air quality in New York City, with the city ranking ninth-worst globally and impacting regions from the Great Lakes to Maine.