Looks like wintry weather on the way. Some models even show a risk of snow showers in the East midweek as very cold artic air moves down over the country. No certainty how long the much colder weather might last but some interesting charts none the less.
Definitely a very different week coming up wrt the weather. Frost becoming widespread and severe as night time temperatures end up a good few degrees below freezing. A bitter temporary Northeasterly may prevent frost in the East but could also bring heavy hail, sleet and snow showers. Keep up to date here! Bbl.