Clouds will increase as a low-pressure system develops to the south.  Seasonably cool conditions tomorrow will give way to hot and humid conditions by the end of the week.

TODAY

An area of low pressure will pass to the south of the region with cloudy skies and isolated showers.  Winds will veer to the east at 5 to 15 mph.  Temperatures will rise into the mid-60s to lower 70s over the interior, lower to mid-70s along the coast, and mid to upper 70s in the Delaware River Valley for highs.

TONIGHT

Skies will clear as the low-pressure system exits the region.  Winds will veer from the southeast to the southwest at 5 to 15 mph.  Temperatures will fall into the lower to mid-50s over the interior and mid to upper 50s along the coast for lows.

TOMORROW

A trough will produce scattered clouds with isolated showers.  Winds will be from the southwest at 5 to 15 mph.  Temperatures will rise into the lower to mid-70s over the interior, mid to upper 70s along the coast, and upper 70s to mid-80s in the Delaware River Valley for highs.

TOMORROW NIGHT

A trough will produce variable clouds and isolated thunderstorms.  Winds will be from the southwest at 5 to 15 mph.  Temperatures will fall into the upper 50s to lower 60s over the interior and lower to mid-60s along the coast for lows.

THURSDAY

A trough will produce variable clouds and isolated thunderstorms.  Winds will be from the southwest at 5 to 15 mph.  Temperatures will rise into the lower to mid-80s over the interior, lower to mid-80s along the coast, and upper 80s to lower 90s in the Delaware River Valley for highs.

FRIDAY

A cold front will move through the region with scattered showers and thunderstorms.  Winds will be from the southwest at 5 to 15 mph.  Temperatures will range from the mid to upper 60s over the interior and upper 60s to lower 70s along the coast for lows and upper 70s to mid-80s on Long Island, upper 80s to lower 90s along the coast, mid-80s to lower 90s over the interior, and mid to upper 90s in the Delaware River Valley for highs.  A heat index in the mid to upper 90s will be possible.

SATURDAY

A trough will produce scattered clouds and isolated thunderstorms.  Temperatures will range from the mid to upper 50s over the interior and lower to mid-60s along the coast for lows and mid-70s to lower 80s over the interior, lower to mid-80s along the coast, and mid to upper 80s in the Delaware River Valley for highs.

SUNDAY

High pressure will produce scattered clouds.  Temperatures will range from the lower to mid-50s over the interior, upper 50s to lower 60s in the suburbs, and lower to mid-60s in urban areas for lows and mid-70s to lower 80s on Long Island, lower to mid-80s along the coast, lower to mid-80s in the interior, and upper 80s to lower 90s in the Delaware River Valley.

MONDAY

High pressure will produce scattered clouds.  Temperatures will range from the lower to mid-60s for lows and mid-70s to lower 80s on Long Island, lower to mid-80s along the coast, mid to upper 80s in the interior, and upper 80s to lower 90s in the Delaware River Valley.

TUESDAY

High pressure will produce areas of fog in the morning and scattered clouds in the afternoon.  Temperatures will range from the upper 60s to lower 70s over the interior, upper 60s to lower 70s in the suburbs, and lower to mid-70s in urban areas for lows and mid-80s to lower 90s on Long Island, lower to mid-90s along the coast, and mid to upper 90s elsewhere for highs.  A heat index of around 100 will be possible.