Two days ago we had 80F high temps, yesterday a cold front came in with temps below freezing, freezing rain/sleet/snow, and winds.
Today is a Lets Just All Stay Inside day. Streets and sidewalks have a layer of ice covered with sleet and there are plenty of wrecks from the few drivers out there.
Normally we would see dry streets and temps > 40F in a few days after an ice storm. I schedule my rides around the weather.
Cold with sunshine and no wind on clean streets is OK down to about freezing. Other days, it is nice to have a gym/pool membership.
One of these days I'll get my bike trainer set up.