We're having a lot of rain here right now as well. I rode to work on the TW in the rain today because I'm on strike against the weather. I'm ignoring the fact it's raining and doing what I want.
Here it is an hour later and I'm still soaking wet at my desk chair.
And yes, I'm mowing my 1/2 acre yard twice per week at the moment. I just mow it in 3rd gear and blast the grass outward and scatter it in the yard like loose hay.