Yes.
Colder seems unlikely based on recent trends, but it is prudent to be prepared.
Hotter, yes.
Wetter, yes.

The main risk around here is flooding. It is most unlikely that my home will be flooded as I am atop a hill. Significant disruption to utilities and food supplies seems possible.

I have therefore increased supplies of food and fuel, and water purification equipment.

I have also reviewed plans for not just sheltering in place but for hiding in place.
I am concerned that TPTB might order evacuation, and I would prefer to remain in place, partly for fear of looters.
In such circumstances, dark curtains should be closed in the early stages of any emergency, to avoid subsequent opening/closing of curtains that suggests that someone is within.