A rebuilding upper ridge of high pressure will see temperatures climb into the low 20s on Thursday before falling to about 6 C overnight.
A mix of sun and cloud will slide in to finish the workweek, with the mercury making its way into the 20s by a few degrees on Friday afternoon.
The first weekend of fall will kick off on a sunny note on Saturday, though clouds will slide back in later in the day, along with an afternoon high in the mid-20s.
A chance of showers arrives on Sunday, as a frontal boundary approaches with daytime highs dunked back into the low 20s.
The first full workweek of fall begins on an unsettled note, with a chance of showers and afternoon highs back into the teens.