Commuters across western Pennsylvania will need to be on alert for foggy mornings this week, but the reward comes in the form of sunny skies and unseasonably warm afternoons. The National Weather Service in Pittsburgh has highlighted patchy fog as the main concern for early risers, especially Tuesday morning, before clear skies take over.
Foggy Morning Commutes
Tuesday morning will begin with patchy fog, most dense along I-376, river valleys, and low-lying areas across Allegheny, Beaver, and Washington counties. Visibility could be significantly reduced near bridges and interchanges, making driving more hazardous. The Pennsylvania Department of Transportation reminds motorists to slow down, use low-beam headlights, and allow extra travel time. The fog should lift by 9 a.m., but until then, drivers should exercise patience and caution.
Pittsburgh International Airport and downtown are also likely to see thick fog, creating potential delays for early morning travel. Parents of teen drivers are encouraged to remind them to adjust speeds for conditions and avoid distractions on the road.
Sunshine Returns by Midday
Once the fog clears, Tuesday will bring bright sunshine and comfortable warmth, with highs near 78 degrees. Light east winds will shift southeast in the afternoon, keeping conditions calm and pleasant. This stretch of mild, stable weather will persist throughout the week, giving Pittsburghers a late taste of summer.
Wednesday continues the sunny pattern, with highs near 80 degrees and overnight lows around 50. By Thursday, another round of morning fog is possible, but afternoon highs will climb to 82 degrees. Evenings remain crisp, dipping into the 50s, offering a refreshing balance to the daytime warmth.
Late Summer Warmth Builds
Looking further ahead, Friday and Saturday both promise sunshine and highs in the low to mid-80s. Saturday will be slightly warmer, reaching 84 degrees under partly cloudy skies. The pattern feels more like August than early September, providing an extended opportunity for outdoor activities before fall weather inevitably takes hold.
The stretch of dry weather also means no rain is expected through Sunday, a welcome break for weekend plans such as football games, late-summer festivals, and backyard gatherings. While evenings remain cool, daytime warmth will encourage residents to enjoy time outside.
Safety and Seasonal Tips
Despite the calm weather, the foggy mornings bring risks. Commuters should continue to drive cautiously and allow extra minutes for travel during early hours. This is especially important for those navigating school traffic or heading to work before sunrise.
With afternoon highs in the low 80s, hydration and sun protection remain important for outdoor workers and children at recess or after-school sports. While the weather feels summery, the longer nights and crisp evenings remind us that autumn is just around the corner.
Five-Day Forecast for Pittsburgh, PA
- Tuesday: Morning fog, then sunny. High 78. Low 49.
- Wednesday: Sunny. High 80. Low 50.
- Thursday: Morning fog, then sunny. High 82. Low 54.
- Friday: Sunny. High 82. Low 54.
- Saturday: Partly cloudy. High 84. Low 58.
