Chilly conditions through the week will give way to an increasing snowfall threat by Sunday and a true arctic blast by early next week.
TONIGHT
High pressure will produce scattered clouds. Winds will be from the northwest at 5 to 15 mph. Low temperatures will fall into the mid to upper 10s over the interior and upper 10s to lower 20s along the coast.
TOMORROW
High pressure will produce scattered clouds. Winds will be from the northwest at 10 to 20 mph. High temperatures will rise into the lower to mid-20s over the interior, upper 20s to lower 30s in the Delaware River Valley, and lower to mid-30s along the coast. Wind chill temperatures will be in the 10s and 20s.
TOMORROW NIGHT
High pressure will produce scattered clouds. Winds will be from the southwest at 5 to 15 mph. Low temperatures will fall into the single digits to lower 10s over the interior and mid to upper 10s along the coast.
THURSDAY
High pressure will produce scattered clouds. Winds will be from the southwest at 5 to 15 mph. High temperatures will rise into the upper 10s to lower 20s over the interior, mid to upper 20s in the Delaware River Valley, and upper 20s to lower 30s along the coast.
FRIDAY
High pressure will exit the region with increasing clouds. Winds will be from the west at 5 to 10 mph. Low temperatures will fall into the upper 10s to lower 20s over the interior and lower to mid-20s along the coast. High temperatures will rise into the lower to mid-30s over the interior and upper 30s to lower 40s along the coast.
SATURDAY
High pressure will remain off the coast with scattered clouds. Low temperatures will range from the upper 20s to lower 30s over the interior and lower to mid-30s along the coast. High temperatures will range from the upper 30s to lower 40s.
SUNDAY
An arctic cold front will press through the region while an area of low pressure organizes off the coast, with rain showers changing to snow from northwest to southeast. Accumulating snowfall is expected by the evening throughout the region. Low temperatures will range from the mid to upper 20s over the interior and upper 20s to lower 30s along the coast. High temperatures will range from the lower to mid-30s over the interior, upper 30s to lower 40s in the Delaware River Valley, and lower to mid-40s along the coast.
MONDAY
An area of low pressure will produce periods of accumulating snowfall in the morning, followed by clearing skies in the afternoon. Low temperatures will range from lower to mid-10s over the interior, upper 10s to lower 20s in the suburbs, and lower to mid-20s in urban areas. High temperatures will range from the upper 10s to lower 20s over the interior, mid to upper 20s in the Delaware River Valley, and upper 20s to lower 30s along the coast and urban areas.
TUESDAY
A series of troughs will produce scattered clouds and flurries. Windy conditions are expected. Low temperatures will range from single digits below zero to single digits above zero. High temperatures will range from the single digits over the interior and lower to mid-10s along the coast.
