Philadelphia weather: Cloudy afternoon before rain Saturday night

PHILADELPHIA (CBS) -- Fog began clearing out for most of the Philadelphia region late on Saturday morning after low visibility overnight.

Visibility was under a mile due to this fog which settled in overnight.

Skies appeared mostly clear in the Poconos, Lehigh Valley and Chester County.

Why was it so foggy this week? Grant Gilmore explains

The fog has been so stubborn for the last few days - but if you're wondering how it forms and why it's so foggy, Grant Gilmore explains in the video above filmed Thursday.

When fog moves out; weather and temperatures for Jan. 27, 2024

Saturday afternoon, the fog gave way to a cloudy but mild and dry day. Don't plan on sunshine, but any outdoor activities will be good to go.

We're looking at a high of 49 degrees in Philadelphia, slightly lower in the Lehigh Valley and at the Jersey Shore.

Then we're looking at more rain spreading over the area Saturday evening, likely persisting through Sunday.

This rain could be heavy at times, particular overnight into the early hours of Sunday morning.

Sunday night, this rain will mostly move offshore as cooler air begins to move in to our area. That could change some of the lingering precipitation to a wintry mix, but it's looking like the cold air won't arrive in time for this to produce any significant snow for us.

After this, we're looking at a mostly clear week with highs in the 40s and lows in the 30s.

Here's your 7-day forecast:

Saturday: Clouds at night, rain. High 49

Sunday: Periods of rain. High 44, Low 43

Monday: Possible rain/wintry mix early. High 43, Low 37

Tuesday: Partly sunny. High 41, Low 30

Wednesday: Partly sunny. High 41, Low 32

Thursday: High 48, Low 32

Friday: Partly sunny. High 49, Low 37

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