Looks like the day will turn out to be a beautiful day outright, even though you will have to put up with cold temperatures to start the day. Sunny skies throughout the day will bring some relief to the cold, but only a little. Daytime highs will top out in the lower 50s with winds from the northeast averaging at 5 MPH. There is no chance of rain throughout the day or night. Skies will become partly cloudy throughout the evening. Overnight lows will bottom out in the lower 30s with winds from the northeast averaging 2-5 MPH. Here is a breakdown of what I think the temperatures will be throughout the daytime:
8AM - 26ºF, 10AM - 34ºF, 12PM - 45ºF, 2PM - 48ºF, 4PM - 50ºF, 6PM - 46ºF.
The day starts off a little warmer than Friday, with partly cloudy skies. Temperatures are expected to be close to freezing at 8AM. Skies will become mostly cloudy by the afternoon, maybe as early as lunch time. Daytime highs are expected to reach the lower to mid 50s with winds from the east averaging 5 MPH. Skies will stay mostly cloudy with rain chances starting to creep in after 10PM. At this point, rain amounts look to be very small and I wouldn't be surprised if none falls at all. Lows will bottom out at or near 40 with winds from the southeast averaging 2-5 MPH. Chance of rain during the overnight hours is 30%.
I wish I could have better news as of right now, but I had to up the rain chances for Sunday. Day starts off at 8AM with mostly cloudy to cloudy skies and a possible shower. The atmosphere will be pretty moist throughout the day, so I think it would be a good idea for teams to have the rain tires at the ready.
So with each update, is seems the rain is trending to move in later than each previous model run. Wouldn't it be great if models continue that trend, and the rain doesn't move through the area until after 5PM on Sunday? If any changes are needed to be made, be sure to watch for updates at our new team Twitter feed @RacecastWx, and follow both mine (@RaceWx4You) and Doug's (@Race4caster) feeds. We also have live radar on our website and on the Pirelli World Challenge website at world-challenge.com. Just click on the Weather link in the Event Weekend box at the top-right of the page. We also have our Racecast Weather Facebook page, so be sure to like the page to receive updates there as well.