First truly cold air of the season arrives this weekend

It's that time again. Where we live shall be revealed once more.

2am run of the GFS, valid for this Sunday at around 8am. Temperatures below 30°F are very likely.

8pm run of the ECMWF, valid for this Sunday at around 8am.  Once again, temps below freezing are predicted.

Run-to-run consistency of both the GFS and ECMWF models is predicting temperatures well below freezing by the early morning hours of Sunday, October 18th.  The GFS is especially aggressive, predicting widespread temperatures in the mid-to-upper 20s. The good news is that temperatures should be back in the upper 60s by early next week.

Yee-ha.