Pittsburgh, Pa. – Residents across western Pennsylvania will feel sharp temperature swings this week, with chilly nights followed by warm afternoons. Overnight lows in Pittsburgh are expected to dip into the 40s while daytime highs climb well into the 70s through Friday.
According to the National Weather Service in Pittsburgh, clear skies and dry air are driving larger-than-normal diurnal changes, with temperature differences ranking in the 90th percentile for this time of year. The lack of cloud cover allows rapid cooling after sunset while daytime sunshine quickly warms the region.
Communities such as Butler, Indiana, and Oil City will see lows in the upper 30s and 40s, raising patchy fog potential during the morning commute. Farther south, Morgantown and Wheeling will stay slightly milder at night but still experience swings of 25 to 30 degrees between morning and afternoon.
Travelers are urged to be cautious on rural roads during early morning hours, as cooler valleys may see reduced visibility. Homeowners should plan for chilly mornings while also preparing for warm afternoons that may require fans or air conditioning.
The dry pattern is expected to continue through the end of the workweek, with temperatures slowly trending warmer into the weekend.
Five Day Forecast for Pittsburgh, PA
- Monday: Low 50, High 72, mostly sunny, clear overnight
- Tuesday: Low 45, High 76, cool morning, warm afternoon
- Wednesday: Low 48, High 77, dry with patchy morning fog
- Thursday: Low 51, High 80, warmer trend continues
- Friday: Low 53, High 79, dry skies, mild nights returning
