We were rained on all night here in Florida from two sources, mother nature and:

You'll stake a bit less and you'll require more days overall, but you are still able to get staking rewards in Rain without having the pc open 24/7.
Although rain enforces randomized rewards, as an example, I've had the wallet up and running approximately for 26 hours total since the 22nd of August, and on the 25th of August I've gotten a 162.5 POS mined rain.

Don't waste electricity, be mindful of your environment.
Mining farms already waste plenty of electricity and create plenty of pollution and trash, there's no need for you to waste energy and abuse your PC to stay open and connected 24/7.