Severe thunderstorms with potential flash flooding are forecasted for the Columbus, Cincinnati, and Wilmington regions through Monday, with drier conditions expected by Tuesday.

A Heat Advisory is issued in Raleigh, NC, with heat index values possibly reaching 107 degrees. Residents are advised to take precautions. There's also a slight risk of severe storms with potential wind gusts.

Pittsburgh expects a mix of showers, thunderstorms, and fog this weekend, with a brief sunny break early next week before humidity and rain chances return.

The National Weather Service issues a heat advisory for Charlotte, warning of high heat index values and recommending precautions against heat-related illnesses.

The National Weather Service issued a Heat Advisory for central Florida counties with expected heat indices of 108-110 degrees, advising precautions due to high temperatures and humidity.

St. Louis faces a hot week with chances of showers and thunderstorms, highs near 96-99 degrees, and heat indices up to 109. Patchy fog, partly cloudy skies, and sporadic rain are expected.

NWS issues a Hazardous Weather Outlook and Flood Watch for D.C., forecasting showers, thunderstorms, and potential flash flooding, with a high of 88 degrees expected.

Knoxville is set to experience thunderstorms with a high chance of flooding, especially north of I-40. High humidity and near 95 heat index values may precede downpours and potential flash floods.

The National Weather Service predicts summer storms in Baltimore, with a mix of thunderstorms and hot, humid conditions, followed by a drop in humidity and cooler, dry weather. Central Virginia may face heavy rain and a flood watch.

The National Weather Service forecasts showers and thunderstorms in Indianapolis, with potential severe weather and high temperatures nearing 92 degrees later in the week.

Philadelphia's forecast includes sporadic showers, thunderstorms, and high humidity, with temperatures ranging from the low 70s to near 95 degrees throughout the week.

Austin faces a stretch of sunny days with mid-90s temperatures, light breezes, and consistent evening lows in the mid-70s, according to the National Weather Service.

A nonhazardous oil spill from an underground cable in Mill River, Long Island led to PSEG Long Island's swift containment and cleanup efforts, with local wildlife and residents impacted.