Monday September 21 2020

Document and journal Maryland Weather conditions observed in Baltimore yesterday, climate report today, sunrise/sunset, moon phase, and daily weather map.

Quick look weather forecast, and NEW GFS Interactive simulation slider.   *Also see the new Maryland Weather local pages below.

Note: Today is the last full day of summer. The Autumnal Equinox and start of Fall is on Tuesday at 9:31 AM

Frost Advisory 

If you saw my report last night. Carroll and Frederick Counties in Maryland were added to this package late. There was widespread frost Sunday morning, so you may see it this morning as well. If you are traveling to work, you might need to scrape the windshield.

Monday September 21 Frost Advisory


Morning Temperatures at 6 AM

September 21 maryland weather temperatures Monday morning


Satellite Loop

A lot of clear over the eastern US this morning. On the right edge we can see Hurricane Teddy just east of Bermuda.  To the south, coils from Tropical Storm Beta.



Morning Set Up

High Pressure centered over northern New England dominates the eastern US. That is why we remain cooler than average and have areas of frost. Woads will shift and bring us a warm up over the next few days.

Monday September 21 morning Surface Weather Hurricane Teddy Tropical Storm Beta


Quick Weather Forecast:

Based on metro Baltimore


I will have a detailed forecast shortly.

Monday September 21 First weather




NEW: Interactive Rain and Wind Slider

Try this:

  • Use the Orange Button to slide the timeline on your own. Or hit the Play Button at the lower left.
  • You can also pinch to zoom or move the map.



Climate Data Update

Observations Yesterday:

Sunday September 20 2020

High = 69ºF  at 12:57 PM 

Low = 42ºF  at 6:04 AM *Tied the record

Rainfall: 0.00″


Winds  from the Southwest

  • Top Speed (1 minute average) = 16  mph
  • Top Gust (3 to 10 seconds) = 23 mph
  • Average Wind Speed: 6.4 mph

Please note that humidity and dew point often change each hour like the temperature. These are not recorded as high or low, and can be arbitrary depending on the time you check.


Current Data and Past 72 Hourly Reports

You can get the hourly weather reports for the prior 72 hours at this link:

Baltimore Weather at BWI Past 72 Hours



Today’s Weather

Monday Climate Stats:

September 21, 2020 in Baltimore

Average High:  76ºF

Record High: 96ºF in 1895, 1931

Average  Low: 56ºF

Record Low:  37ºF in 1956, 1962

Sunrise: 6:54 AM 

Sunset 7:04 PM 

*Daylight = 2:33 shorter than yesterday. 

Moon Phase

Monday September 21 moon phase




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

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




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



Email Updates

Please make sure you sign up (above or click here to sign up for email alerts…. ) for my newsletter. This way you will get an email to make sure you are notified of each post.



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


Related Posts

2020 Tropical Storm and Hurricane Names and Naming History

Tropical Storm Hurricane History


Atlantic Tropical History: Maps of Origin Regions Every 10 Days

13_Tropical Storm Formation Sep11_20



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.