We were driving home on an absolutely gorgeous blue bird day, secondary roads, 55 mph and very light traffic; when boom we get smacked by a cross wind. This may be common out West but in Indiana i...
The biggest risk when towing during a hard rain are the other people on the highway that decide to slow down to a crawl or actually stop on the road. If it is really extreme, it can be justified to pull over on the shoulder and stop. But I've seen a lot of people drive slow with their flashers on, even if it is just raining normally. If the visibility is limited, you can come up quickly on some other drivers that have slowed considerably.