Pittsburgh, Pa. – Scorching heat will take hold of western Pennsylvania on Tuesday, with heat index values soaring past 105°F, raising concerns for health and safety across the region. The National Weather Service has issued an Extreme Heat Warning for Allegheny, Butler, Beaver, Washington, Fayette, and Westmoreland counties through 8 p.m. Wednesday.
What to Expect on Tuesday
The worst of the heat will hit Tuesday afternoon, with “feels-like” temperatures nearing 107°F around Pittsburgh and along I-376. Humidity will make it feel extremely uncomfortable, raising the risk of heat-related illnesses. The National Weather Service is advising residents to:
Limit outdoor activity during peak heat hours.
Stay hydrated to prevent heat exhaustion.
Check on vulnerable neighbors, such as the elderly and those with health conditions.
Storms and Travel Risks
While the extreme heat will dominate the day, relief may come in the form of thunderstorms. Storms are expected to develop after 2 p.m., potentially bringing damaging wind gusts through the evening. I-376 commuters and drivers across western Pennsylvania should be prepared for slick roads and reduced visibility due to the storms.
The storm risk continues on Wednesday, with the threat of localized flash flooding and half-inch of rainfall in some areas. The storms could disrupt afternoon commutes and outdoor plans.
Air Quality Alert
Additionally, the Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert for Tuesday, which affects sensitive groups including children, seniors, and people with heart or lung conditions. These groups are advised to stay indoors and avoid strenuous outdoor activities during the heat of the day.
Five-Day Pittsburgh Forecast (June 24–28)
| Day | Weather | High Temperature | Additional Information |
|---|---|---|---|
| Tuesday | Storms likely after 2 p.m. | 96°F | Heat index up to 107°F |
| Wednesday | 50% chance of storms after 11 a.m. | 93°F | – |
| Thursday | Storms likely, especially after 2 p.m. | 92°F | – |
| Friday | Afternoon thunderstorms expected | 92°F | – |
| Saturday | Rain and thunder possible all day | 89°F | – |
The extreme heat on Tuesday is expected to be the most intense, with a heat index reaching 107°F. Thunderstorms will provide some relief, but they also bring damaging winds and the risk of localized flooding.
Air quality concerns will also affect sensitive groups, so it’s important to stay safe, stay hydrated, and limit outdoor activity. Keep an eye on weather updates as conditions may change quickly.
