Spain's all-time high temperature record stands at 117.1°F, or 47.3°C, set on July 13, 2017.
The national record for Portugal is 47.4 degrees Celsius, established in 2003.
Europe sweltered through an intense heatwave on Sunday, with soaring temperatures contributing to forest fires, nuclear plants closing and even threatening the Netherlands' supply of fries, although some countries experienced a slight respite.
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Parts of the Iberian peninsula are bracing themselves for a surge in temperatures amid warnings of the first heatwave of the year.
If you're over in Spain right now or you're travelling there on vacay today, be sure to keep hydrated and in the shade, because risky highs of 118F/48C are expected in central areas of the country, with health warnings issued in 41 of the country's 50 provinces, according to the Daily Mail.
Large sections of the country are on red alert on the country's civil protection agency's danger scale.
114 people were killed in two massive forest blazes previous year in Portugal and civil services yesterday sent mobile text alerts warning the population of an extreme risk of fires in some regions, including around the capital Lisbon.
Portuguese authorities have issued a countrywide health warning, and alerts are also in place in 40 of Spain's 50 provinces. Elsewhere, summer has brought forest fires and drought to places as far apart as Britain, Scandinavia and Greece.More news: Thousands of firefighters struggle to contain giant blazes in California
However, the Met Office is expecting the mercury to rise again this weekend with temperatures reaching 26C in a sunny end to the week. Power company EDF said the measures were taken to avoid temperature hikes in rivers from which water is drawn to cool the reactors.
It is expected that the sizzling temperatures will begin on Thursday and will last through the weekend with all time highs due to be recorded.
With nearly no rainfall since May, Sweden experienced its hottest July in more than 250 years, with the drought and high temperatures sparking wildfires across the country, even as far north as the Arctic Circle.
The current European record of 48 degrees Celsius, set in Athens in July 1977.
Temperatures will push 30ºC in the South and it will remain dry, while the North and Scotland will be treated to the more balmy early 20s, with possible showers.More news: National Archives: We can't produce all Kavanaugh docs until end of October