Pittsburgh, PA – The city wakes to a steel-gray sky and biting chill this Sunday morning, as temperatures hover near 31°F with a thin crust of frost on rooftops. Meteorologists are tracking a weak clipper system expected to bring light snow showers by mid-to-late afternoon, potentially brushing the area with up to one inch of accumulation before tapering tonight.
While totals will stay light, slick roadways and reduced visibility may develop briefly during the evening commute, especially on bridges, ramps, and shaded stretches of I-376, I-79, and Route 28. Drivers should plan for slower travel and monitor conditions as temperatures dip below freezing tonight.
According to the National Weather Service in Pittsburgh, Monday will be calmer and dry but sharply colder — highs only reach the upper 20s with clear skies and a steady northwest breeze. The brief lull won’t last long: another system arrives Tuesday into Wednesday, bringing a wintry mix of rain and snow, followed by heavier rainfall midweek and another temperature plunge Wednesday night.
Beyond that, models hint at a broader Arctic outbreak sweeping across the Great Lakes and Ohio Valley between December 11–17, potentially ushering in the coldest air of the season — and a renewed snow chance just before holiday travel peaks.
Five-Day Outlook (Pittsburgh, PA)
- Monday: Mostly sunny, high 28°F.
- Tuesday: Partly sunny, rain/snow mix late, high 38°F.
- Wednesday: Rain likely, high 44°F.
- Thursday: Snow showers possible, high 38°F.
- Friday: Mostly cloudy, high 32°F.
