There's a chance Seattle could be looking at its first heat wave of the year just as the city hosts its first game of the 2026 FIFA Men's World Cup on June 15. The immediate future looks like rain, starting out with a chance of showers and even thunderstorms Saturday, so soak it up while you can before things get sizzling. The National Weather Service is warning that around June 13 to 17, there's about a 20% to 40% chance of extreme heat risk, said meteorologist Matthew Cullen.