As we grow closer to the big Indy 500 and Memorial Day weekend, forecast guidance continues to back away from what at one point looked like a rather unsettled weekend. Instead, it appears as if heat and humidity will grab the headlines. While we can’t rule out an isolated to widely scattered thunderstorm (best chances of that coming Sunday and Monday), most will remain rain and storm free this weekend. Even if you’re one of the “lucky ones” to get under a storm, it’ll pass quickly and sunshine will return.
While “tropical mischief” approaches the central Gulf Coast this weekend, an upper level ridge will dominate our weather. This supports the drier trend the models are now going to and also will help boost temperatures. We forecast highs at or around the 90° mark Saturday through Memorial Day- well above the average high of 78°.
The other big story, especially for those planning to attend the race, will be increasing humidity over the weekend. Forecast dew points will approach and exceed the 70° mark Sunday afternoon, providing a very tropical feel to the air.
