Pittsburgh, Pennsylvania, is set for a stormy Sunday afternoon, with thunderstorms expected to bring gusty winds and intense downpours across western Pennsylvania. The National Weather Service in Pittsburgh has issued a Marginal Risk (Level 1 of 5) for severe weather for Allegheny County and surrounding areas. These storms are expected to hit Pittsburgh by mid-afternoon, with the greatest risk of damaging winds and heavy rainfall occurring between 2 p.m. and 7 p.m.
Severe Weather Risk and Thunderstorms on Sunday
With high temperatures reaching around 90°F, the heat will provide plenty of energy for the storms, which are expected to develop as early as midday. However, the strongest storms will likely occur during the afternoon, particularly in the peak heating hours. The main concern is damaging winds, but there will also be the threat of flash flooding in low-lying areas, especially near major routes like Interstate 376. While spotter activation is not expected, residents should still be prepared by securing outdoor items, avoiding flooded roads, and keeping an eye on power-dependent devices in case of outages.
Looking Ahead to Monday and Tuesday
The unsettled weather will continue into Monday, with thunderstorms likely to develop after 11 a.m. A high of 90°F is expected, and there is an 80% chance of storms throughout the day. On Tuesday, showers and storms will continue, with a 60% chance of precipitation, especially in the afternoon. These storms could bring heavy rain and gusty winds once again, making outdoor plans, including early Independence Day celebrations, uncertain.
Midweek Outlook: Drier Conditions Ahead
By Wednesday, the weather will start to calm down, with mostly sunny skies and a high of 86°F. There will still be a slight chance of afternoon storms, but conditions will generally be more settled. Thursday is expected to be pleasant and dry, with mostly sunny skies and a high of 85°F, offering a nice break from the unsettled weather. For those planning 4th of July activities, Friday looks to bring partly cloudy skies with a slight chance of storms (30%), with temperatures reaching a high of 84°F.
Six-Day Forecast for Pittsburgh (June 29 – July 4)
Sunday (June 29): High 90°F, partly sunny with thunderstorms after 2 p.m., 30% chance of rain
Monday: High 90°F, thunderstorms likely after 11 a.m., 80% chance of rain
Tuesday: High 89°F, showers and storms likely, especially after 2 p.m., 60% chance of rain
Wednesday: High 86°F, mostly sunny with a slight chance of afternoon storms
Thursday: High 85°F, mostly sunny, pleasant and dry
Friday (4th of July): High 84°F, partly cloudy with a slight storm chance (30%)
Plan Ahead for the 4th of July
While Sunday and the early part of the week will bring unsettled weather, the 4th of July looks promising, with mostly sunny skies and mild temperatures. While there’s a small chance of afternoon storms, conditions should be ideal for outdoor activities and celebrations, making it a good day for fireworks and cookouts. Be sure to monitor the forecast leading up to the day, as weather conditions can change.
