Tonight: Snow likely; mix possible Pittsburgh south changing to snow by late evening. Low of 16. Winds: E 5-15 mph. Wind Chills near zero. Wednesday:Widespread snow in the morning; scattered snow showers by afternoon. Windy. High of 23. Winds: W 15-25, G 30 mph. Thursday:A few snow showers possible, breezy, mostly cloudy. High of 26. Storm totals 5-8" by Thursday morning for Pittsburgh; more south and east in the ridges. Friday:Mostly cloudy. High of 28. Saturday:Mostly cloudy. High of 27. Sunday:Mostly cloudy, snow showers possible. High of 28.