No problem, there's people (like me) who fly during winter.
We can keep our planes out on the field when it's a lot colder than that.
Don't worry to much, it's a wooden structure wrapped in plastic, not a ming vase

Fluctuation in air temp can wrinkle the covering though, just reshrink it with a heatgun if needed.
In my opinion moisture would be worse than cold weather.

Happy Landings!