Taking the family out to Utah for the first half of April and am looking for recommendations.

Firstly, wondering about weather - the kids comfortable with 30F nights, but not sure about much colder. We've been looking primarily at canyonlands, arches, capitol reef, and san rafael. Forecast looks reasonable, nut not sure if anyone's experienced local weather phenomena colder than that.

Looking for easy(er) day hikes of <5miles with camping/exploring potential. Would also love a family-friendly loop for 2-3 nights, if you've got one. Not opposed to National Parks, but valuing solitude/unimproved areas over needing to see the main sites.

Thanks!