Hurrah for the Canadian air in Fredericksburg
As I write this the temperature at the UMW weather station is 65 degrees (after a low of 60) with the dewpoint sitting at a very comfortable 55 degrees. The cold front that slipped through yesterday did a thorough job of squeegeeing the humidity out of the atmosphere over Fredericksburg and ushering in autumn. The same conditions will hold sway today as the Canadian air keeps the tropical moisture at bay. The high temperature may top out at 80 degrees in the city but most of the day will remain below that mark.
Thursday will wind up being only a bit warmer as temperatures will reach the mid-80s ahead of the refreshing air that is behind our next front. This next boundary passage will be dry (no rain) and will serve only to reinforce the cool dry air already in place. This reinforcement will lead to a morning low Friday in the low to mid-50s with even cooler temperatures in the more rural regions so a light jacket might feel good when heading out the door early that morning. Friday’s high won’t likely make it above the mid-70s, quite a change from the Labor Day weekend heat and humidity.
Overall the outlook for Fredericksburg is for typical September temperatures according to this Climate Prediction Center forecast graphic:
(“Equal chances” – EC – usually corresponds to “average” in this type of probability graphic.) The rainfall outlook is similar but could change if a September tropical system dumps a lot of moisture over the Old Dominion, which could still occur despite the current rather quiet state of affairs in the tropics.