After two days of 90 degree heat, temperatures for Friday will be a change of pace.
A cold front from the north is sliding down into Southwest Virginia. Throughout the day, cloud cover will be anywhere from mostly cloudy to overcast and high dew point temperatures will make it feel sticky outside. Much of the region will also feel a difference in temperatures.
Afternoon high temperatures will range from the mid to upper 70s. Even those in northern counties such as Highland, Bath (VA), and Pocahontas (WV) could experience afternoon highs in the 60s. Although, some spots in the New River Valley could hit the 80 degree mark.
Why is there almost a 20 degree difference between Thursday’s high temperatures and those we can expect for Friday? There are a few components.
The increase in cloud cover will limit heating in the area, while winds from the east will bring slightly cooler air into the region. If more sunshine peeks out during the afternoon, then temperatures could warm up a couple of degrees higher. Otherwise, temperatures have come to a plateau when it come to warming for Friday.
The hot temperatures on Wednesday and Thursday were caused by warm winds, as well as plenty of sunshine. The additional humidity made it feel a few degrees warmer, too.
Seasonal averages for this week in September range from the low 80s east of the Blue Ridge to the upper 70s off towards the west. Friday’s forecasted high temperatures will be a few degrees below-average.
The coolest high temperature recorded in Roanoke for September 13: 61°. That record was set back in 1964.