Word for something being calm and weird at the same time

I'm looking for a word that describes a scenario that feels both calm and odd at the same time. Like it's weird that it's so calm right now, but it is. Sort of like calm before the storm, but there may or may not be a storm. I thought it was eerie but eerie includes fear or frightening.

If there isn't a single word that incorporates the stillness, IMO this adjective can have the connotation of occurring in calmness, probably because of the nouns it often modifies and a setting used to portend an event.

preternatural

Preternatural abilities, qualities, or events are very unusual in a way that might make you think that unknown forces are involved.

preternaturally ADVERB
It was suddenly preternaturally quiet. Collins

Beyond what is normal or natural. Lexico

Something made the skin on the back of Arnau's neck prickle – a preternatural feeling, and as they moved to the horses, his gaze strayed up. S .J. A. Turney; City of God

I sat in the clearing on the hilltop, and waited in the preternatural stillness so unlike the noisiness of the harshly sunny summer days that had greeted me. K. J. Atchity and R McKenna; The Classical Greek Reader

A central image in both poems is the preternatural "calm before the storm" a natural image that both poets use to characterize a scene in which a man is about to inflict a mortal blow upon an utterly helpless and passive victim, and then delivers it. J. M. Ortiz; Shakespeare and the Culture of Romanticism