Pennsylvania Weather Alert: Flood Watch and 80% Rain Risk Hit Pittsburgh Today Before 76°F Monday

Pennsylvania – Downpours could turn Pittsburgh pavement slick today as thunderstorms develop and a Flood Watch covers the region into early Sunday. The wetter pattern then gradually breaks before a cooler Monday night.

According to the National Weather Service, the Flood Watch runs from noon today until 1 a.m. Sunday. Showers become likely this afternoon, with thunderstorms possible after 2 p.m.

Rain chances climb to 60% today before reaching 80% this evening. Temperatures rise near 84 degrees.

Rainfall tonight could total between one-quarter and one-half inch. Thunderstorms may produce higher amounts, increasing the potential for localized drainage problems.

Drivers should watch conditions along I-376, I-279 and Route 28. Heavy downpours can quickly reduce visibility and leave water collecting on low-lying pavement.

Never drive through standing or moving floodwater.

Sunday remains unsettled, although rain becomes less widespread. Pittsburgh carries a 40% shower chance between 2 p.m. and 5 p.m. Thunderstorms become possible after 5 p.m.

Sunday reaches about 84 degrees before another 50% shower and thunderstorm chance develops Sunday evening.

The bigger pattern change arrives Monday.

Mostly sunny skies return as Pittsburgh reaches about 76 degrees. Temperatures then tumble to around 56 by early Tuesday, producing a 20-degree drop from Monday's high.

Tuesday rebounds to 81 under mostly sunny skies. Wednesday turns warmer still, reaching about 86 before another wetter system approaches.

The provided NWS outlook does not specify a tornado threat. However, thunderstorms remain possible, so residents should continue monitoring weather alerts.

Thursday carries a 60% chance of showers with a high near 82.

For now, today's Flood Watch demands the closest attention. Check drainage-prone roads before traveling and watch for changing alerts through 1 a.m. Sunday. Seeing heavy rain around Pittsburgh? Tell us what conditions look like where you are.

Five Day Weather Outlook for Pittsburgh, PA

• Sunday: 40% chance of showers during the afternoon, with thunderstorms possible after 5 p.m. High near 84°F. Rain chance increases to 50% later.
• Monday: Mostly sunny. High near 76°F. Mostly clear later, low near 56°F.
• Tuesday: Mostly sunny. High near 81°F. Partly cloudy later, low near 64°F.
• Wednesday: Mostly sunny and warmer. High near 86°F. 40% chance of showers later, low near 67°F.
• Thursday: Showers likely. Rain chance 60%. High near 82°F. 40% shower chance later, low near 62°F.