7:00 AM | ***Beneficial rain from early tonight into early Thursday...maybe a thunderstorm...windy, colder on Thursday and Friday with instability showers...first snowflakes likely***

6-Day forecast for the Philadelphia, PA metro region

Today

Mainly cloudy, mild, becoming breezy, chance of rain by the end of the afternoon, highs near 60 degrees; E winds around 5 mph

Tonight

Mainly cloudy, chilly, becoming windy, periods of rain, maybe a thunderstorm, lows in the lower 40’s

Thursday

Mainly cloudy, windy, colder, chance of rain showers which can be mixed in with snow by late in the day, near 50 degrees for afternoon highs

Thursday Night             

Mainly cloudy, windy, cold, occasional rain and/or snow showers, low-to-mid 30’s for late night lows

Friday

Mainly cloudy, windy, cold, chance of rain and/or snow showers, lower 40’s

Saturday

Partly sunny, windy, cold, near 50 degrees

Sunday

Mainly sunny, breezy, chilly, low-to-mid 50’s

Monday

Partly sunny, a bit milder, upper 50’s

Discussion

A developing storm system will begin to impact the region with steady beneficial rain from early tonight into early Thursday and there can be a thunderstorm mixed into the picture. It is likely to turn out to be the highest rainfall totals from a single event that we’ve seen in quite awhile with 0.50” to 1.00” likely by early tomorrow. This developing storm system will be a slow mover due to strong blocking high pressure to the north and its impacts here will continue from tomorrow afternoon through Friday with “wraparound” showers and persistently strong winds. From late tomorrow through Friday enough cold air could feed into the system for a mixing with or even a changeover to snow all the way down to the Philly metro region. Significant snow is likely up across northeastern PA with several inches on the table for the Pocono Mountains...an early season gift for skiers.

Meteorologist Paul Dorian
Arcfield Weather