World Cup Heat Watch: Atlanta Hits 87% Heat Risk Today — And the USA's Biggest Match of the Year Is on Deck

Today's World Cup slate features three high-stakes knockout matches and at least one venue with a serious heat risk. New Climate Central data shows that all three July 1, 2026 games carry a chance of "performance-impairing heat," as a heat dome continues to bear down on the southern U.S.

Climate Central defines performance-impairing heat as temperatures above 82.4°F. At that threshold, elite players have been shown to run slower, cover less ground, and complete fewer high-intensity efforts. For fans spending extended time outdoors before, during, or after a match, the risks are just as real.

Highest Heat Risk: England vs. DR Congo in Atlanta

England topped Group L with seven points, including a 4-2 win over Croatia and a 2-0 victory over Panama. They enter today's match as heavy favorites. DR Congo, meanwhile, are making their first-ever World Cup knockout appearance, having drawn 1-1 with Portugal, lost 1-0 to Colombia, then won 3-1 over Uzbekistan to secure their historic place in the round of 32. Yoane Wissa has scored 75% of DR Congo's goals at this tournament, averaging a goal every 90 minutes.

The match at Atlanta Stadium carries an 87% chance of performance-impairing heat today, with climate change contributing 14% to that elevated risk. Atlanta Stadium is climate-controlled, which offers protection inside the venue. But with a heat dome covering much of the South, outdoor conditions around the stadium are dangerous for fans arriving early, waiting in lines, or tailgating before the noon ET kickoff.

The Home Crowd Showdown: USA vs. Bosnia and Herzegovina in San Francisco

The United States won Group D and will face Bosnia and Herzegovina at the San Francisco Bay Area Stadium. The Stars and Stripes proved too strong for Paraguay and Australia in the group stage. Bosnia and Herzegovina drew with Canada, lost 4-1 to Switzerland, and beat Qatar 3-1 to advance as one of the eight best third-place teams — and notably, this is only their second World Cup, though they carry a lengthy history from their time as part of Yugoslavia.

Climate Central puts the heat risk for this match at 26%, with climate change showing a rare -1% influence, meaning today's conditions are actually slightly cooler than they would otherwise be due to climate patterns. San Francisco's coastal climate makes it the coolest venue of the three today, and the open-air stadium is a manageable environment for fans. Still, a more than 1-in-4 chance of performance-impairing heat means preparation still matters, especially for fans in direct sun.

Coolest Game of the Day: Belgium vs. Senegal in Seattle

Belgium finished as group winners, scoring five goals in their final group outing against New Zealand, but they were held scoreless by Iran and managed only a 1-1 draw against Egypt earlier in the tournament. Senegal became the first side ever to qualify for the World Cup knockouts after losing their opening two games, before a commanding 5-0 victory over Iraq was enough to see them through as one of the eight best third-placed teams.

Seattle Stadium carries the lowest heat risk of the day at just 6%, with climate change adding 2%. The partial canopy at the venue provides some additional cover. This is by far the most comfortable game of the day from a heat standpoint.

What Fans Should Know

Atlanta's outdoor conditions are the biggest concern today, with the heat dome still in place across the Southeast. Even with a climate-controlled interior, the time fans spend outside before and after the match can be risky. San Francisco offers moderate conditions for the USA's biggest game of the tournament so far, and Seattle fans have little to worry about weather-wise.

Drink water consistently, wear light clothing, use sunscreen, and know where cooling stations and medical areas are located. Warning signs of heat illness include dizziness, heavy sweating, nausea, rapid heartbeat, and confusion. Move to shade or a cool area immediately if you or someone nearby experiences those symptoms.

Want more World Cup coverage? Head to Sports Pass for the latest. Share this story with friends, family, or your group chat, and keep your forecast in the now with Weather Forecast Now.