TONIGHT: Partly Cloudy, Mild. Lo 68. Winds: Light.
SUNDAY: Increasing Clouds, Peeks of Sun. Mainly Dry During Daytime Hours. Scattered Showers and Storms by Evening/Overnight. Hi 86. Winds: Light.
MONDAY: Scattered Showers & PM Storms. Hi 82. Winds: Light.
Despite some morning clouds, sunshine and dry weather won the day in the Central PA. High temperatures for the second day in a row hit the low 90s and the humidity began to rise too. Tonight should remain dry, even as thunderstorms develop to our west. This may mean additional clouds, but again rain chances stay low for now.
A few more clouds will arrive tonight as higher humidity arrives ahead of a cold front. Sunday will start off with just clouds, but there will be an opportunity for storms Sunday afternoon primarily west of Harrisburg initially. As the front makes slow progress and higher moisture moves in from the south, the rest of the area will see some showers and possible a storm Sunday night. *Sunday night into Monday may in fact be our best opportunity for rain.* Monday will offer our best chance for pop-up storms as the slow-moving front crosses and interacts with higher moisture and instability. Even then though, the day certainly won’t be a washout. Monday brings temperatures in the low 80s and higher humidity.
A few more storms are possible Tuesday as a weak disturbance swings through. Behind that, things look pretty quiet for the rest of the week. There are some signs in the long range models of moisture creeping back in toward the end of the week, but for now, lift appears just too weak to get anything going. It will get warmer though and stay moderately humid with highs in the upper 80s as kids head back to school.
-Meteorologists Dan Tomaso and Adis Juklo