Baltimore, Maryland – High heat and a fresh round of thunderstorms will sweep across Baltimore on Sunday, July 20th, as a classic mid-Atlantic summer surge arrives. Drivers on I-95 and residents throughout the city should prepare for scattered downpours, sudden gusty winds, and a muggy afternoon with a heat index topping 100°F.
According to the National Weather Service, a Flood Watch remains in effect for central Maryland, including Baltimore, from 2 p.m. to 10 p.m. Sunday. Heavy rainfall could cause flash flooding in low-lying neighborhoods and along major highways. Storms are expected to hit hardest south of Washington, D.C., but Baltimore and surrounding counties could see damaging wind gusts and brief street flooding during the afternoon and evening hours.
Thunderstorm chances rise quickly after noon, with the heaviest rain and lightning possible between 2 p.m. and 6 p.m. Residents should stay alert for weather alerts, avoid driving through flooded roads, and move outdoor plans indoors during peak storm hours. Emergency managers urge everyone to keep mobile devices charged and avoid travel on flood-prone routes, especially near the Inner Harbor and along the Jones Falls Expressway.
Sunday night brings some relief as storms taper off, but hot and humid conditions return Monday and Tuesday, with highs in the upper 80s to low 90s. The workweek looks mostly dry, but the heat continues, with only slight storm chances on Wednesday. By Thursday and Friday, expect partly cloudy skies and highs near 99°F.
Five-Day Baltimore Weather Outlook (July 20th–25th):
- Sunday, July 20th: Scattered thunderstorms, heavy rain possible after 2 p.m. High 96°F. Heat index near 100°F. Flood Watch in effect.
- Monday, July 21st: Mostly sunny and hot. High 90°F. Light winds, no storms expected.
- Tuesday, July 22nd: Sunny, high near 88°F. Calm weather.
- Wednesday, July 23rd: Partly cloudy, slight storm chance. High 91°F.
- Thursday, July 24th: Mostly sunny, high 97°F.
- Friday, July 25th: Mostly sunny and hot. High near 99°F.
Stay tuned for updates as advisories may change. Another round of alerts is possible if storms redevelop during the week.
