On Wednesday, a low pressure system will be tracking along the Gulf Coast region. The rain associated with this system will stay well south of Road Atlanta, but it will bring quite a bit of cloud cover during the day. Highs will be pleasant, in the mid 70s.
Thursday is expected to see more sunshine than Wednesday, with similar high temperatures in the mid 70s.
On Friday, a cold front will be approaching from the northwest. Ahead of the front, moisture will increase across Georgia, and some light rain will likely move in before sunrise. On and off showers are expected through the day, but most of these will be light. Rain amounts are uncertain this far out, but I expect perhaps a few tenths of an inch by Friday evening.
The timing of the cold front will determine when the chance of rain ends. At this time, I expect the showers to exit by sunrise, but there is a possibility that they could linger into the mid to late morning hours. The morning practice session could be affected. The rest of Saturday looks great, with a high in the lower 70s and mostly sunny skies by the afternoon. Saturday night will get chilly for those camping out, with a low around 50.
Check back through the week for updates.