I have one for mildly hot temperature. If it gets cold I put something below it that covers my ears, like a thin beanie or a type of Balaclava made for biking for really cold temperatures. If its too hot, I just suffer.
I have an older helmet that I'm still using but would definitely get a MIPs helmet now if I were buying one. During the cold months, I just wear the same helmet with a neck gaiter. A scarf also suffices if I'm feeling European that morning.
You'll want some really warm gloves too if you're going to be riding out in the cold.
I know that skiing and snowboarding helmets exist, whether they are up to your standards is another thing. As for hot weather most cycling helmets with something like those sweat wicking cloth tubes are good.
Honestly just need to find one that fits YOU and is safe.
I got a Bontrager Spectre Wavecell because it felt the best on my head from all the helmets I tried and the tech is safe (MIPS is also very good).
I wear it from -15°C to +30°C and it's good for me. The helmet is not the problem outside this range, it's just generally too hot/cold, it isn't the top of my head that gets way too hot/cold. As long as you don't get an aero helmet I think you won't have any temperature problems.