There will still be some dim sunshine in places early Thursday but then clouds will thicken fast as a disturbance and warm front approaches from the south. Rain will develop from the south to the north through the afternoon hours. Temperatures will likely rise into the lower 40s in places before the rain develops but then will drop into the 30s once the rain starts.
As this storm system lifts through the region, we’ll have periods of rain Thursday night and Friday, some of which can be heavy. Over an inch of rainfall is likely in places and a flood watch is in effect for Clinton, Centre and Huntingdon counties. There is a chance for minor flooding, not only in these areas but other spots too. A cold front will then sweep through the region Friday night. Behind the front it will be windy and it will turn colder with snow showers Saturday. Highs in the 30s with the wind making it feel colder than that. Sunday will feature a mix of clouds and sunshine with highs in the 30s to near 40. A weak disturbance may bring some flurries or snow showers Sunday night into Christmas Eve Day morning. The rest of Monday will be cloudy to partly sunny and a bit chilly with highs in the 30s. There are some indications that another disturbance may try to follow with another period of light snow later Christmas day. Otherwise, the day will be partly to mostly cloudy with highs in the 30s to near 40. We’ll still have the chance for a bit of snow or flurries early Wednesday then the rest of the day will be breeze with clouds and sunshine and highs in the 30s. Temperatures will be milder than average as we head into the end of the year.