Homemade Wunderlust makes a great point that warrants repeating and expanding. No need spending or holding out for one of those expensive “hiking” umbrellas. [a] you can get a cheap umbrella from most grocery stores that will work fine to get the rain and snow off your face. [b] you might use the expensive umbrella less often if you think you’re protecting it.
Frankly any and all gear is not worth the cost or weight if you do not use it.