PITTSBURGH, Pa. – Thick morning fog will reduce visibility for drivers across southwestern Pennsylvania through Monday, particularly along I-376 and I-79. This weather phenomenon could create dangerous conditions during early commutes, with fog expected before 9 a.m. Sunday and 7 a.m. Monday.
Fog Hazards and Morning Conditions
According to the National Weather Service in Pittsburgh, patchy fog will linger both mornings, causing visibility to drop below half a mile near Allegheny County Airport. The fog will gradually clear up by late morning each day, allowing for sunnier conditions. However, drivers are urged to take extra precautions:
“Use headlights, slow your speed, and allow extra travel time,” officials advised, emphasizing the danger of reduced visibility on major roads.
High temperatures will reach the low 80s Sunday and Monday, well above the usual temperatures for late September, creating hazy starts to the days with calm winds contributing to poor air circulation.
Transition to Cooler Weather Starting Wednesday
The warmth of the 80s will persist through Monday, but Tuesday will mark the first sign of change with partly sunny skies and temperatures around 80 degrees. Although patchy clouds may appear in the evening, no significant rain is expected to disrupt the weather.
By Wednesday, the weather will noticeably shift as highs dip to the mid-70s, signaling the start of October’s cooler trend. This cooler air will continue to build throughout the week, with temperatures potentially reaching the low 70s by Thursday, and overnight lows dropping into the 40s. The National Weather Service encourages locals to monitor any updates, as the change in weather could bring frosty conditions overnight.
What to Expect from the Five-Day Forecast
Here’s a breakdown of what Pittsburgh residents can expect in the coming days:
- Sunday: Areas of morning fog, then sunny. High 83° | Low 58°
- Monday: Mostly sunny after early fog. High 84° | Low 60°
- Tuesday: Partly sunny. High 80° | Low 56°
- Wednesday: Mostly sunny, cooler. High 75° | Low 48°
- Thursday: Sunny and crisp. High 70° | Low 47°
Preparing for the Shift to Fall Weather
As the region prepares for the cooler weather expected later in the week, residents should be ready for the transition from summer-like temperatures to more seasonable fall conditions. This dramatic shift is typical for late September, and while no major weather events are predicted, it’s wise to stay informed in case conditions worsen with the arrival of October’s chill.
Are you ready for the cooler weather to settle in? Share your thoughts in the comments below.
