FWIW - Don't shoot the messenger, but per the FAA those types of activities do require a Part 107 license. Unlikely to get caught, but the FAA has been known to make examples of a few unfortunate souls.
But per your questions, unless you go big bucks most of the drones are not waterproof/resistant and can be damaged. If you must fly in rain, snow, etc., like mentioned before get a cheap one. But cold air IS good for flying.
DJI Mini 2 is a good entry level drone. Lots of good YouTube vids on how to fly.
You are saying it is illegal to take a drone and check my cows?