Washington, DC – A dangerous summer heat wave targets Washington, DC on Thursday, July 24th, with highs soaring to 99°F and humidity pushing the heat index even higher. Residents, commuters, and anyone traveling the I-395 and I-295 corridors are urged to limit outdoor activity, stay hydrated, and check on vulnerable neighbors as this summer weather alert goes into effect.
According to the National Weather Service, Thursday brings clear skies and relentless sun, with temperatures spiking by midday and remaining high through the afternoon. City workers are preparing for possible heat-related road issues, while local agencies are urging everyone to avoid strenuous outdoor activity between noon and 6 p.m. If you must travel, carry water, wear light clothing, and never leave children or pets in parked vehicles.
The heat continues into Friday, with a projected high near 99°F, keeping the risk of heat illness elevated. By Saturday, expect a shift: clouds build and scattered thunderstorms could bring relief—but also potential travel disruptions, especially for weekend plans and those on area highways. The chance of rain and storms rises to 40% late Saturday into Saturday night, with another round of storms possible Sunday after 2 p.m. These storms could lead to slick roads and brief localized flooding.
Next week brings a break from the storms, but not from the heat. Highs on Monday and Tuesday stay in the low-to-mid 90s with plenty of sun, so energy use and air conditioning demand will remain high.
Heat advisories may be extended. Stay tuned to official updates and prepare for possible changes as the weekend approaches.
Five-Day Outlook for Washington, DC
Thursday, July 24: Sunny, high 91°F.
Friday, July 25: Hot, high 99°F.
Saturday, July 26: Mostly sunny, high 96°F. Chance of storms after 2 p.m.
Sunday, July 27: Partly sunny, high 93°F. Chance of storms after 2 p.m.
Monday, July 28: Sunny, high 92°F.
Tuesday, July 29: Sunny, high 95°F.
