Three more matches are set for Wednesday ranging from coastal Rio de Janeiro to Manaus in the Amazon.
The biggest weather concern of the day will be the match between Cameroon and Croatia, set to take place in Manaus during the evening. There will be a threat for showers, potentially even a heavy downpour during the match.
Another concern will be the combination of warmth and humidity that will make it feel quite sweltering at times for both participants and fans, despite the fact that the game is being played in the evening.
The other two matches, set to take place in Rio de Janeiro and Porto Alegre, will feature dry weather with partial sunshine.
The match in Rio de Janeiro between Spain and Chile will also force competitors to deal with a sweltering combination of heat and humidity. While unlikely to result in any heat breaks, the option remains available at referee discretion.
The match between Australia and Netherlands, taking place in Porto Alegre, will occur with seasonable temperatures.
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An early taste of summer is expected to return to a large part of the eastern United States in the final days of April.
Flooding rain and locally severe thunderstorms will advance across the southeastern United States through Monday with parts of the Carolinas bracing for major flooding.
Rain continued to plague NASCAR drivers and fans at Bristol, Tennessee, on Sunday as officials were forced to postpone the Food City 500 to Monday.
Following rain to end the weekend in Florida, a spell of dry weather will threaten to worsen drought conditions and exacerbate brush fires plaguing the state.
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The March for Science at the National Mall attracted thousands to share their views about the current political climate despite rainy conditions.