​The action on the PGA Tour is heating up, and so too are the temps. The forecast for the week ahead in Memphis, Tennessee — the site of this week’s FedEx St. Jude Championship — is calling for some hot weather.On Monday, the AccuWeather forecast shows triple-digit heat for the second, third and final rounds at TPC Southwind, Aug. 14, 15 and 16.More: What to know about the 2026 FedEx Cup Playoffs: Events, locations, prize moneyThursday’s first round is looking to top out at 99 and the first two days are expecting about a 55 percent chance of rain, so don’t expect only the heat, but you’re also looking at some humidity.Saturday’s third round appears to be the hottest, with AccuWeather calling for “sweltering heat with sunshine.”The FedEx St. Jude is the first of three playoff events, but the hot and steamy weather is likely to follow the tour pros as the second leg of the postseason is set for St. Louis and the finale, as always, will be in Atlanta.Todd Kelly is the assistant managing editor of Golfweek.This article originally appeared on Golfweek: Triple-digit heat expected for FedEx St. Jude Championship in Memphis