After a long, dry summer, Pioneer Reunion and Rodeo attendees might be advised to keep an umbrella and light jacket at hand.
The national Weather Service in Norman, Okla., is forecasting fairly good chances for rain as a cold front moves through the area during the three-day festival.
Forecasts show a 60 percent chance of thunderstorms on Thursday with a high of 83 and a low of 70. Friday and Saturday will be a bit cooler with highs on Friday predicted at 72 degrees, a low of 60, and a 50 percent chance of thunderstorms. The high on Saturday is expected at 77 degrees, a low of 58 degrees, and a 20 percent chance of thunderstorms.
Temperatures will return to the upper 80s with mostly sunny skies by Tuesday.