A slow-moving front will develop some rain into our area tonight. Temperatures are still in the 40s to near 50 and will hold nearly steady tonight, even rising a little by morning in many locations. The rain will be steadier and heavier later tonight into Saturday. We’ll also have areas of fog developing.
As the front approaches, temperatures will reach well into the 40s to the lower 50s early Saturday but then as the front passes through it will turn windy and it will start to turn colder. Temperatures will drop through the 40s and into the 30s in some locations. In fact as the cold air catches up with the precipitation, The rain may end mixed with some wet snow later in the day, especially west of I-99. This will be the start of a change to a much colder weather pattern. Christmas Eve day will be brisk and colder with a good deal of clouds and temperatures only reaching into the 30s. A weak disturbance will bring a period of light snow later Sunday through Sunday night leaving a fresh covering of snow in many places for Christmas. Behind this disturbance, Christmas Day will be windy and much colder with considerable cloudiness along with scattered flurries and snow showers. Travel may be a bit tough traveling through the Laurel Highlands into western Pennsylvania. Temperatures will not rise out of the 20s on Monday and the wind will make it feel a good bit colder than that. Another weak disturbance will bring some snow showers or flurries on Tuesday; otherwise, it will become even colder for the middle of next week. Temperatures will drop into the single digits Tuesday night and may not rise out of the teens despite some peeks of sunshine Wednesday and Thursday. We’ll just have the chance for some flurries each day. Friday will be mostly cloudy and brisk. Another disturbance may bring a period of snow next Saturday followed by a continuation of cold into the start of 2018.