That approach might work some places. However, in Alaska where I live the weather forcasts are notoriously unreliable. Not because we have bad weathermen, but just because it is a very tough place to predict the weather. We are close to where the storms are born out in the Aleutian Low. Also, unlike the lower 48 where the coastlines and major mountain ranges mostly run more or less N-S, here in Alaska we have mountains and coastlines running every which way. This means weather forcasts are iffy at best. Also, in coastal Alaska it tends to rain a lot, even in good years.

All of this means that if one is unwilling to hike/paddle/camp in the rain, then one doesn't get out much.