A tropical air mass tonight will produce low clouds, isolated showers, and patchy dense fog. A strong cold front follows tomorrow evening. A brief hint of Fall shows up for the end of the week.
TONIGHT
Variable clouds and some patchy fog are expected. A few isolated showers are possible. Winds will be from the south at 5 to 10 mph. Temperatures will fall into the upper 60s to lower 70s for lows.
TOMORROW
A cold front will approach with scattered cloud cover and isolated thunderstorms. A line of showers and thunderstorms will reach the region by the evening hours. The thunderstorms will be capable of heavy downpours, occasional lightning, and wind gusts over 40 mph. The highest threat for severe thunderstorms will be over eastern Pennsylvania. Winds will veer to the southwest at 5 to 15 mph. Temperatures will rise into the lower to mid-80s on the coast, mid to upper 80s over the interior, and upper 80s to lower 90s in the Delaware River Valley for highs.
TOMORROW NIGHT
The cold front will move through the region with weakening showers and thunderstorms. The thunderstorms will be capable of heavy downpours, occasional lightning, and wind gusts over 40 mph. Winds will veer from the southwest to the west at 5 to 15 mph. Temperatures will fall into the mid to upper 60s over the interior and upper 60s to lower 70s along the coast for lows.
WEDNESDAY
The cold front will exit the region with a few lingering showers in the morning, followed by clearing skies. Winds will be from the west at 5 to 15 mph, with gusts over 20 mph. Temperatures will rise into the upper 70s to lower 80s over the interior and lower to mid-80s along the coast for highs.
THURSDAY
High pressure will produce clear skies with scattered cloud cover. Winds will be from the northwest at 5 to 15 mph. Temperatures will range from the mid to upper 50s over the interior and lower to mid-60s along the coast for lows and lower to mid-70s over the higher elevations and upper 70s to lower 80s elsewhere for highs.
FRIDAY
High pressure will shift off the coast with scattered cloud cover. Temperatures will range from the upper 40s to mid-50s over the interior and upper 50s to lower 60s along the coast for lows and mid-70s to lower 80s for highs.
SATURDAY and SUNDAY
A warm front will approach the region with increasing clouds and isolated showers. Temperatures on Saturday will range from the upper 50s to lower 60s for lows and upper 70s to lower 80s along the coast, and lower to mid-80s away from the coast for highs. Temperatures on Sunday will range from the lower to mid-60s for lows and lower to mid-80s along the coast, mid to upper 80s over the interior, and upper 80s to lower 90s in the Delaware River Valley for highs.
LABOR DAY MONDAY
A stationary front will linger over the region with variable cloud cover and scattered showers. Temperatures will range from the lower to mid-60s over the interior and upper 60s to lower 70s along the coast for lows and lower to mid-80s along the coast, mid to upper 80s over the interior, and upper 80s to lower 90s in the Delaware River Valley for highs.
TUESDAY
A stationary front with a wave of low pressure will produce broken cloud cover and scattered showers. A few of the showers will be capable of heavy downpours. Temperatures will range from the lower to mid-60s over the interior and upper 60s to lower 70s along the coast for lows and lower to mid-70s for highs.
