The big chill is coming to a large portion of Pennsylvania beginning Monday night as wind chill temperatures are forecast to plunge to minus 20 degrees in some places.
The National Weather Service advisories cover numerous counties across Pennsylvania and generally take effect Monday night through midday Tuesday.
The projected wind chill temperature plunge includes the following:
Western Pa.:  Wind chills down to -15°FCentral & Northern Pa.: Wind chills -10°F to -20°FNortheast Pa.: Wind chills as low as -15°FSoutheast Pa.: Wind chills near -5°F to -10°F
Beyond the plunging wind chill temps tonight into tomorrow, light snow or flurries are possible in some areas of the state on Monday, the National Weather Service’s five-day Pa. forecast predicts.
Tuesday will be mostly sunny but much colder, with a highs around 22 and an overnight low of 9. And that is before factoring in the wind chill.
Pa. will warm up a bit on Wednesday, with highs around 36 and a low of 29.
Thursday will be downright comfortable by comparison, with temps topping 46 and lows around 23, as mostly clouding conditions dominate.
Finally, the cold comes back on Friday, with a high of 34 and a low of 11 under mostly cloudy skies, the weather service says.