If its going to pour, take a proper rain jacket. You'll also want gloves, hat etc. as if it rains up at 2000m it's also <5deg and you'll freeze on the way down. Just take a small bag.
This.
Don't worry about going up, as you'll keep warm from the effort, it's coming down you have to prepare for.
@andyp started
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If its going to pour, take a proper rain jacket. You'll also want gloves, hat etc. as if it rains up at 2000m it's also <5deg and you'll freeze on the way down. Just take a small bag.