Pennsylvania Weather Alert: Fall Frost Ends as Warmer Temperatures Return for Columbus Day Weekend
PITTSBURGH, Pennsylvania — Western Pennsylvania’s first true taste of fall frost arrived Friday morning — but residents can finally put away the plant covers. The National Weather Service in Pittsburgh says warmer air will move in through the weekend, bringing a stretch of sunny, mild weather for outdoor plans and Columbus Day events.
Frost Advisory Expires as Temperatures Rebound
The Frost Advisory that blanketed parts of Allegheny, Beaver, and Washington counties expired early Friday at 9 a.m., ending the region’s first widespread chill of the season.
Morning lows near 33°F left a thin coating of frost across lawns and pumpkin patches from the Ohio border to the Laurel Highlands, but conditions began warming rapidly by midday.
Forecasters say no additional frost risks are expected through next week, with overnight lows climbing into the upper 40s and low 50s.
Weekend Outlook: Mild and Sunny
A ridge of high pressure will keep skies clear and winds light through the weekend, allowing temperatures to reach the upper 60s and low 70s by Sunday afternoon.
Drivers traveling along Interstate 79, I-70, and the Pennsylvania Turnpike should see ideal travel weather, though patchy morning fog could form in valleys and low-lying areas before sunrise.
Farmers and gardeners who took frost precautions can safely uncover sensitive plants, as nighttime lows will remain above freezing for several days.
Perfect Weather for Outdoor Events
Forecasters say the mild pattern will continue into early next week, making it perfect for leaf-peeping, hayrides, football games, and fall festivals.
Experts encourage residents to take advantage of the warmth now, with another potential cold snap expected closer to Halloween.
Five-Day Forecast for Pittsburgh, PA
- Friday: 68°/39° – Sunny and crisp; frost risk ends early.
- Saturday: 70°/45° – Mostly sunny; light south breeze.
- Sunday: 66°/50° – Partly sunny; brief evening shower chance.
- Monday (Columbus Day): 67°/50° – Mild with clouds; perfect for outdoor events.
- Tuesday: 71°/48° – Mostly sunny; great for fall foliage viewing.
For ongoing Pennsylvania weather alerts, travel forecasts, and fall updates, visit NapervilleLocal.com.
I’ve lived in Naperville long enough to see how quickly our community changes — from new developments downtown to sudden shifts in our Midwest weather. Reporting on Naperville news and daily forecasts gives me the chance to keep neighbors informed about what really matters. My goal is simple: deliver clear, timely updates so you always know what’s happening in our city and what to expect from the skies above.