Generally dry weather is expected for the three World Cup Matches slated on Saturday.
The only threat of a shower will be in Fortaleza, when Germany takes on Ghana; however, it appears any rainfall should end prior to the start of the match.
The biggest weather factor will be the combination of heat and humidity that will make for some of the warmest conditions seen thus far in the World Cup.
Temperatures will be near 84 F (29 C) with dew points making it feel 90-95 F (32-35 C) throughout the match. Heat stoppages could be used if the referees feel the conditions warrant a break for the players.
While temperatures will be in the lower 80s F (28-29 C) at the start of the Nigeria and Bosnia and Herzegovina match in Cuiaba, temperatures will quickly become more comfortable as night falls on the stadium with clear skies.
The other match of the day will feature Argentina and Iran, set to take place in Belo Horizonte. This match will feature dry weather and seasonable temperatures with a good deal of sunshine.
Looking ahead to Sunday, weather could be a factor in the United States versus Portugal match in Manaus. While the heat and humidity will be an issue, a bigger concern looms as showers and thunderstorms will rumble across the area throughout the day.