Day will start off partly to mostly cloudy, with clouds building throughout the morning. Latest HRRR model run has rain not reaching the area until the 11AM to 2PM time frame, even though some scattered light showers could form and move through before then. The rain won't be too widespread, and the sun may peak out at times. Rain amounts should total 1/4 inch or less.
Early Morning Low: Mid 50s Highs: Mid 70s
A good part of the day should be dry with only widely scattered showers. As the afternoon progresses, the air will become more unstable and heavier thunderstorms will form. Surface-based instability (CAPE) values will approach 2000 j/kg by mid-afternoon, but the overall dynamic support will be weakening and major severe weather issues are not expected. Currently, the best chance of the stronger storms will come east and south of the track, but it will be a close call. Don't be surprised if some small hail and gusty winds are involved with these storms. Just remember, if you can hear thunder, you are close enough to be struck by lightning.
Early Morning Low: Lower 60s Highs: Mid 70s
Skies should be mostly sunny throughout the day, and the night should be clear.
Early Morning Low: Mid 50s Highs: Upper 70s
Sunny skies and warmer temperatures at the track. A near-perfect day for racing.
Early Morning Low: Upper 50s Highs: Lower 80s