A number of years ago, I went to the Beartooth Pass area over Labor Day. It was cold and rainy. Ugh, but I think it's hard to top this forecast.
Labor Day
Rain showers before noon, then snow showers. Temperature falling to around 19 by 5pm. North wind 18 to 24 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around 4 inches.
Tonight
Snow showers, mainly before 3am. Low around 10. North wind 15 to 23 mph. Chance of precipitation is 100%. New snow accumulation of around 8 inches.
Tuesday
A chance of snow showers before 9am, then a slight chance of snow showers after noon. Partly sunny, then gradually becoming sunny, with a high near 24. North wind 11 to 14 mph becoming east in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.
Rain followed by 10F sounds like ice to me. Either way, it's going to be a real bitch on a motorcycle.