Department of Meteorology and Atmospheric Science at Penn State.

This is Weather World.

Good evening and welcome to Weather World.

Today is Friday, August 28th 2026.

I'm Rob Lydick and it's the final Friday of August already.

We'll recap some of the rains that we had through the Commonwealth, especially in eastern Pennsylvania last night.

Before we get to our Friday forecast frenzy, which includes Karl Schneider with the extended forecast.

Actually Karl will have week two trends.

Rather, Marissa Ferger will have the extended forecast, both of which will take us out 14 days.

Let's get started, though, with a recap of some of the rain that moved through Pennsylvania last night.

The jackpot was actually northern Lancaster and southern Berks counties, a swath here where some rain totals came in anywhere from 3 or 4in over the course of the last 24 hours or so.

Even some rainfall on the order of 2.33in at Philadelphia International Airport.

Not enough, though, by the way, for a daily record yesterday, that record was over four inches set back in 1977.

Also got some reports from a viewer.

Gordon in Light Street, Pennsylvania, picking up over 2.95in in his gauge from those downpours that moved through yesterday, much less across western Pennsylvania as this cold front moved through.

You can see a recap of the radar perspective, where some of these storms were feisty and packed.

Some gusty winds across eastern Pennsylvania last evening diminishing.

And out there today, quiet conditions.

Just a very isolated spritz that did pop up in western Pennsylvania earlier this afternoon.

But all in all, quieting down as that cold front has crossed in its wake, we see our Commonwealth cameras.

A nice, beautiful way to wrap up the workweek out there with some nice cumulus clouds.

And State College the same over in Pittsburgh.

They're getting ready for the Bruno Mars concert, I believe, at Acrisure Stadium to begin the weekend tomorrow.

Also, some clouds that hung a little bit tougher in southeast Pennsylvania with that boundary still slipping southeastward.

But all in all, not a bad way to wrap up the workweek.

And we'll see those clouds continue to crumble as we go through this evening, setting the stage for some pretty nice football night across Pennsylvania.

A lot of the high school football teams just starting off their season tonight, we'll see those temperatures really begin to tumble as well as the dew points will also be dropping going through this evening.

Winds have shifted to come out of the north or northwest, anywhere from five to maybe 15mph at times today, but a refreshing breeze at that.

Get this as of 430, temperatures only in the low 70s across the northwest plateau, low 80s in the central mountains, and low to mid 80s southeast of the mountains.

I think we'll see those temperature readings right around seasonable levels as we begin the weekend tomorrow.

But I mentioned those dropping dew points down in the upper 40s now in northwest Pennsylvania.

We'll continue to see them fall through the 60s and even 50s as we go through tonight.

And that's why our temperatures will actually drop down into the 50s for many of us as we begin the day tomorrow across the U.S.

you see a slice of nice from the Midwest all the way into the northeast.

And I think we'll see comfortable conditions for Saturday before our dew points begin to increase slightly for the second half of the weekend.

But high pressure will be sliding in tonight.

Not only does that provide for a nice evening tonight, but a really nice day as we start off our weekend tomorrow.

Temperatures will remain on the seasonable side with this area of high pressure in control.

And so we're looking at those temperatures dropping down into the 50s tonight.

In fact, I think actually some of the cool spots may be in the mid 40s across the northwest plateau.

High pressure remains in control tomorrow.

70s and 80s will do it for daytime highs tomorrow with just a few high clouds overhead.

And then as we go into Sunday, more clouds.

Temperatures will also be on the increase.

And I think humidity levels also increasing too, with just the chance for an isolated shower.

Better chance comes in as we go into Sunday night and into Monday, which we'll hear more about from Marissa in tonight's extended forecast.

So for tonight, we'll call it fabulous for the Friday Night lights.

Mid 40s in the cold spots.

50s for most of us.

Mid 60s in Center City, Philadelphia.

But all in all will be comfy and cooler.

Those cumulus clouds crumbling this evening with some areas of fog developing overnight.

But once that fog burns off tomorrow morning, really setting the stage for a beautiful day tomorrow should see those temperatures in the mid 70s to low to mid 80s.

Plenty of sunshine, comfortable conditions.

Once again some patchy fog developing as we go to Saturday night.

But all in all a beautiful day to get outside and enjoy this lovely weather.

To wrap up the month of August going into our Sunday temperatures on the increase, humidity levels also on the increase with clouds increasing through the afternoon, I think we will see a few spotty thundershowers arrive in the northwest overnight, or maybe perhaps late in the day.

Southeast.

We're back in just a moment with the extended.

Meteorological fall makes an appearance during this extended forecast period, but it looks like Mother Nature is not going to get the memo, as we are going to feel quite summerlike in terms of both warmth and humidity.

Before we get to that, here's the water vapor.

Satellite imagery really gives us an idea of those steering winds aloft.

A big ridge of high pressure has dominated the western US this week, and we've been under the influence of this trough.

Now, by the time we get to Monday, which is when this period begins, that ridge is shifting eastward, and that is going to allow some very warm air to move into our region.

And it's also going to help pump in some of that humidity that's going to really we're really going to feel the impacts of that, especially by the time we get to the middle of the week.

But towards the end of the week, a trough is going to try to sneak through, and I think that will put an end to at least the very, very warm conditions and will also bring us some comfort.

Comfort by the time we get to Friday.

Going to focus on the temperature tracker during this extended forecast period.

And on Monday, we can see highs getting mainly into the 80s across the Commonwealth, tickling the 90s across the southern portion of the state Tuesday.

That's when we really start to see those temperatures really ramp up.

Everybody is going to be at least 5 to 10 degrees above average.

Continuing to see that heat on Wednesday as well.

Thursday.

This is the beginning of the change as a front is going to be approaching the region.

Things will get still, be warm ahead of it, but behind it we start to cool down and then we'll all notice a difference as we get into the day on Friday.

As far as humidity is concerned, dew points are going to be quite high.

So by the time we get to Tuesday and Wednesday, it's going to feel quite muggy out there.

But then by the end of the week, this front coming in from the north, you'll start to see the cooler colors moving in.

And that's going to be a sign of more comfortable things to come.

But when we get that kind of heat and that kind of humidity, it can be dangerous.

So the National Weather Service heat risk potential for Monday, showing moderate risk for heat related illnesses.

But once we get into Tuesday, that's when things really begin to change, especially across western and southern Pennsylvania, where sensitive groups could have some problems.

You want to stay indoors if you can, and also make sure if you are going to be outside, that you stay well hydrated.

We continue to see some of that major heat risk across parts of the state on Wednesday and then Thursday.

As that front approaches, things begin to look a little bit better.

So let's look at this forecast in a little bit more depth.

Now the big thing to notice is temperatures about a little over five degrees above average for daytime highs.

But the overnight lows this entire period, we are going to have some very warm nights with some places with temperatures about ten degrees above average for the overnight lows as far as Monday and Tuesday, the beginning of the week, just a little bit of cloudiness.

Again, temperatures about five degrees above average for daytime highs.

Just a low risk for isolated showers and storms.

I think most remain dry.

It is going to become more humid though, as we get into the middle of the week.

Ahead of that front.

That's going to move through sometime late Wednesday into early Thursday, and that's going to give us a better chance to see widespread showers and thunderstorms.

And then behind that front, we start to clear out.

Temperatures start to drop, but we feel a lot more comfortable as those dew points also begin to fall.

Carl has a look at the Labor Day forecast in week two.

Trends coming up.

This week.

Two period takes us through the Labor Day weekend, where temperatures look to be comfortable around either side of average precipitation chances, a little bit more uncertain.

Try to break those down best I can here in just a few moments.

But we'll start, as always, with the segment with a look at the average highs and lows which are falling rapidly.

Finally, at this time of the year, this is in the middle of this week two period.

And so I think during most of this period, temperatures, high and low temperatures are going to be within a few degrees of these values.

So in most areas, this is going to translate to a very comfortable feel for late summer, early fall.

So as always in this segment, we use ensemble forecasting.

These are many different solutions to the European model represented by the colored lines early in the period.

I'll draw your attention to the troughing generally where these lines dip to the south and the east, the bulge representing the ridge across the southern plains, and that will move eastward and expand as we go into the middle of the week, as Marissa talked about in her extended forecast period, we're expecting some hot and kind of muggy conditions making it in here by the middle of next week.

But that will change as a cold front will pass through late Thursday, Friday kind of time frame.

And behind that, as we start this period on Saturday will be a northwesterly flow.

So this will knock temperatures close to average as we're not talking about a major cooldown, but it will get rid of the humidity and it will dry things out, at least temporarily.

Moving into Sunday, we're still kind of a northwesterly flow.

I think high pressure is probably dominating, but then certainty really falls off a cliff as we approach Labor Day and kind of the rest of this week two period, as the spaghetti gets really jumbled, we'll switch modes here to the upper air, high anomalies and the overall flow pattern here represented by the black lines.

And one thing you'll notice during this period is the magnitude of these anomalies, especially across the continental United States, is rather low.

The flow is very west to east.

So a zonal flow and all of that makes for a lot of uncertainty.

I think any weather systems are going to be kind of weak in magnitude.

So if something does come by on Labor Day, what that means in terms of sensible impacts for you all is we're not dealing with temperatures that are going to be vastly hot or vastly cool.

And if we do see rain, it will likely be a brief disruption rather than an overall washout, much of the same as we move through the midweek period.

Weak ridging being noted across the middle of the country.

Kind of nothing in terms of the temperature anomalies across the northeast.

And you see a real absence of color as we close out this period, the week two period.

So we'll see.

This is probably one of the more boring week two Checkerboards you'll even see ever see on this program.

And that's because I don't have any confidence of temperatures being above or below average during this period.

In fact, I think it's very likely that temperatures are within a few degrees of average through most of this period.

If we do see some temperature anomalies, I think we'll be on the higher side of average, and that would probably be through Tuesday through Thursday of this period.

But I don't have enough confidence right now to put anything on the checkerboard.

So overall, looking comfortable in the temperature department.

And then in terms of precipitation, I have dry conditions on Saturday with high pressure behind that front.

The absence of color Sunday, Monday doesn't mean it's going to be dry or it's going to rain.

It just means I don't have enough confidence here to put anything.

But one thing I can say about Labor Day is it's looking rather comfortable in terms of temperatures.

And right now for precipitation, I think if it does rain, which I wouldn't be surprised if it does, it's not going to be an all day washout, probably just more of a minor disruption in.

Much of the same can be said for the rest of the week.

Two periods.

That's week two trends.

We're back with a recap up next.

A high school marching bands will be taking to the field tonight.

And a beautiful night.

In fact, for those Friday night lights as high pressure continues to be in control, we'll see temperatures drop into the mid 40s in the cool spots.

I think 50 for most of us and low to mid 60s off to the south and east.

Any of those cumulus clouds out there this evening will be crumbling.

We'll see some areas of fog develop overnight.

I think the fog will burn off tomorrow morning and give way to a beautiful day.

High pressure remains in control, so plenty of sunshine, low humidity, temperatures right around seasonable levels.

So mid 70s to low to mid 80s.

Some once again some patchy fog developing as we go into Saturday night.

Then on Sunday our temperatures will be on the increase, humidity levels on the increase and eventually clouds on the increase as we head into the afternoon.

Upper 70s to upper 80s should do it for daytime highs.

The chances there in southeast Pennsylvania for an isolated afternoon shower or rumble of thunder.

Most of us staying dry.

Better chance comes in, I think, as we go into the overnight hours, as we see a chance for some showers and thunderstorms by then.

All right, well, just a little floating bit of me there at the end of the show.

Thanks so much for tuning in to Weather World this week.

We'll see you back here on Monday for hashtag headlines.

We'll also have an update to that extended forecast from all of us here at Weather World.

Have a great weekend.