Sunday Evening September 20 2020

Once again The National Weather Service has issued a Frost Advisory for southern Pennsylvania and Western Maryland. This is the same region under the advisory for earlier today. But we had frost in parts of central Maryland this morning, while BWI posted a tied record low temperature for Baltimore.

After tying the record low at 42ºF (1952 and 1959), Baltimore hit a high of 69ºF this afternoon.  The dry air and sunshine helped the quick warm up. Well, it’s likely to NOT be another record for BWI Monday. That mark is 37ºF (1956 and 1962), but you could have frost again inland if you saw some this morning.

This is will be the last full day of summer, but we begin a nice warm up during the week. Here’s a quick look:

Frost Advisory Monday Morning

Frederick and Carroll Counties in Maryland have been added to this advisory.

Frost Advisory Monday September 21 EXPANDED


Forecast Lows

Model guidance often broad brushes the region, but there are many sheltered valleys that can drop a few degrees colder. We saw plenty of areas in the mid to lower 30s this morning. That could happen again for the same areas, within a few degrees.

Weather Forecast Low Temperatures Monday September 21


Forecast Highs

Weather Forecast High Temperatures Monday September 21


Climate For September 21 in Baltimore

High: Normal = 76ºF; Record = 96ºF in 1895 and 1931

Normal Low: 56ºF; Record 37ºF in 1956 and 1962



Quick Look Forecast (central Maryland)

Quick Forecast Maryland Weather Monday September 21


Explore More:

Record Low Tied at BWI and Frost Photos Sep 20

Record Low and Frost Photos September 20 2020


Typical First Frost and Freeze



14 Local Maryland Pages (and York PA)

We have made a page for Maryland Weather which gives you the current conditions for 14 present area locations. Many of these match up with the spots on our route.  Please use this list below are reference. I will include them daily with my articles on the kids.

Local Hourly Forecasts and Local Radar
Central Maryland
Southern Maryland



Maryland Weather 

Maryland Weather Page

I wanted to keep it simple. Just the basics for a quick view at any time.

Maryland Weather Just In Weather


Please share your thoughts, best weather pics/video, or just keep in touch via social media



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Also See:


Severe Storm Report Photos And Video From Thursday

Lightning_I95 Baltimore Sep 3Annapolis Storm September 3

Storm Reports All September 3


Maryland Trek Team Shirt

All proceeds will go to the Just In Power Kids programs

Trek Team Shirt Gray

Maryland Trek Cycle Jerseys From Hill Killer

All proceeds will go to the Just In Power Kids programs


Also See:

July 2020 The hottest on record. Will it hint at snow this winter?


Record Hottest Month in Baltimore July 2020




Comet NEOWISE Viewing All July (photos/video)

Comet NEOWISE Bob Gelety


Maryland Strong Love ❤️ 

My ‘bonus’ daughter made this map of Maryland a few years ago. We brought it back for needed positivity. Now on her pick of tanks, and this cool Maryland T for men or women.

Click here or on the image to see more

This is all LOCAL: Made by Maryland Print House; Proceeds support my Maryland Trek 7 this August for Just In Power Kids.MarylandStrongLoveJaiden



Other  Links:

Was Your County Not Included?

Click this map for more on the regional forecast zones


Baltimore Weather At BWI May Not Be As Hot As Reported

Construction at the airport close to the weather station may be added artificial heat. Click here or the image for the details.


Also See:

Double Solar Halo

Double solar halo June 8


Just In Power Kids:

Proceeds go to our programs Providing FREE holistic care for kids in cancer treatment and up to 5 years post treatment and caregivers.


Shine On

Proceeds from all sales go to Just In Power Kids. Click the image to shop and show your support.