TONIGHT: Mild Evening with Temperatures in the Low 70s. A Few Late-Eve. Showers After Dark, Mainly South of Harrisburg. Lo 53. Winds: NW 10-15 mph.
MONDAY: Passing Clouds, Periods of Sunshine. Breezy & Cooler. Hi 63.
TUESDAY: Mix of Clouds and Sun, Breezy & Cooler. Hi 61.
Today brought some lingering clouds early during the morning, and even some late morning-early afternoon stray light showers as a cold front slowly dragged south across the region. High’s today hit 75° officially at HIA and many surrounding areas, but some places soared close to 80°. This evening will remain mild with temperatures in the 70s too. The front that came through this afternoon has not totally cleared the Commonwealth, so stray showers with a ripple or two along the front are still possible later this evening/tonight. Any rain will not be substantial, just enough to dampen the grass in a few spots.
As the cooler air behind the front finally reaches the Mid-state late tonight and Monday, temperatures will tumble. Overnight lows should remain at 50 or above, but the recovery Monday afternoon will be quite small with highs only expected to reach the low 60s. It will turn breezy during this time as well with winds out of the northwest at 10-15 mph.
After a cool but dry Tuesday, a weak area of low pressure will bring us some showers Wednesday afternoon into Wednesday night. A stronger front will bring us more showers Friday afternoon, but the bigger story will be the chill to follow for next weekend. Extended model guidance and historical analogs continue to suggest well below average temperatures with overnight lows in the 30s and afternoon highs in the 50s by Saturday. With the northwest wind blowing over the lakes, it’s not out of the question that parts of northern and western PA see flakes. It will be a shock as average highs by then are in the low 70s! Enjoy the warmth today!
-Meteorologist Dan Tomaso