By Kathy Orr

PHILADELPHIA (CBS) — Low clouds and fog will linger into Thursday morning, reducing visibility and creating a slow commute for some of us.

Skies will become partly sunny Thursday and temperatures will rise into the lower 80s as a warm front moves to our north. There is a chance of a shower or thunderstorm.

Then we will watch a slow-moving cold front approach from the west. Moisture from the Atlantic and Gulf of Mexico will join forces with the front and bring some heavy rain our way. Our latest computer guidance suggests that the heaviest rain will be off to our west, with Lancaster and the Poconos in the 3”+ category.

In Philadelphia and its suburbs I am forecasting 1-2″ of rain, mostly late Friday, into Friday night. There will be locally higher amounts up to 3″ possible, especially in areas west of Philadelphia. There are flooding concerns since Flash Flood Guidance indicates that flooding is likely to begin with only 2 inches of rain.

Winds will pick up as well, gusting to 30 mile-an-hour.

In the wake of this storm, conditions will improve for the weekend.

It will be cool and dry Saturday and Sunday, with highs around 70 degrees through the start of next week.