The National Weather Service forecasts a sunny week for Knoxville with highs in the low 80s, calm winds, and rising chances of rain and thunderstorms midweek.

St. Louis forecasts show a warm and sunny day with a high near 89 degrees, followed by a mostly clear night. A chance of showers and thunderstorms is expected starting Monday, continuing into the week with temperatures in the 60s to high 70s.

The National Weather Service in Melbourne extends flood watch for Eastern Central Florida and issues marine and aviation advisories due to persistent rain, wind, and challenging sea conditions.

The National Weather Service in Wilmington predicts warm, dry weather in Columbus and Cincinnati, Ohio, into Monday, with cooler, rainy conditions by Tuesday.

Boston enjoys unseasonably warm weather with clear skies and temperatures around 80 degrees; however, a cold front is expected with showers midweek, leading to colder temperatures.

Cleveland enjoys warm, dry weather due to a high-pressure system, rain and cooler temperatures expected with an approaching cold front early in the week.

Atlanta's weather forecast includes cloudy skies, showers, and a slight chance of thunderstorms with temperatures around 78 degrees and east winds up to 25 mph. Rain chances decrease tonight with a low of 66 degrees.

Indianapolis forecast: sunny, high of 86°F, light breeze. Chance of showers on Monday afternoon, with rain and possible thunderstorms Monday night and Tuesday. Midweek will see clear skies and cooler temperatures.

The Baltimore area is forecasted to have a sunny and warm start to the week with highs in the lower 80s, before weather changes midweek due to an approaching cold front.

The NWS Tampa predicts a partly sunny day with scattered afternoon storms, a high near 90, and a moderate heat index. Evening may bring milder temps and reduced rain chances. Similar conditions expected Monday and throughout the week.

The weather forecast for Miami predicts a week of unpredictable conditions with a 50-60% chance of rain and frequent thunderstorms, especially in the evenings.

The National Weather Service predicts a sunny week with possible showers for Washington D.C., with high humidity and temperatures reaching the low 80s.

The article details the upcoming weather forecast for Philadelphia, including sunny skies with high temperatures in the 80s, mild nights with patchy fog, and an 80% chance of showers and a possible thunderstorm midweek.