Momma witch, can you have an alter out-side? And if so, is it ok to take it down during stormy weather and set back up later?
YASSSSSSSSSSSSSSS DO ITTTTTTT.
There is nothing wrong with honoring nature out in nature, and if it’s things that will be damaged if left out during inclement weather, pop it back in until it passes. I do the same with my flowers outside if I know it will be too cold at night for them. I just talk to them as I do it and say ‘just gonna keep you lil babies warm tonight’…. you know, like a crazy lady.
You could always get a little garden statue as well and plant flowers around it if that works for you. I had three little yoga frogs once upon a time that I kept out by my plants… Now I just occasionally light an incense by all my flowers out on my back patio.