It just isn't the Ann Arbor Art Fairs without a little rain at some point, and today might be the day. Or not.

Forecasts call for the possibility of showers and thunderstorms, although the best chance is later in the day.

The Weather Underground's forecast on AnnArbor.com reads: "Increasing clouds. A chance of showers and thunderstorms after 5 p.m. Highs 83 to 87. Light and variable winds...becoming south 5 to 10 mph late. Chance of rain 30 percent." Rain is considered "likely" overnight.

The hourly forecast at Weather.com shows a 30 percent chance of rain by 4 p.m., gradually rising to 60 percent by 9 p.m., when the fairs close for the day.