A surge of warmth will cause many residents across southern South America to catch spring fever this weekend.
"An early season outbreak of spring will start this weekend and last through at least the middle of next week due to a dome of high pressure," stated AccuWeather.com Meteorologist Rob Miller.
That high, located off the east coast of South America, will pump unseasonably warm air into the vicinity of Uruguay and northern and central parts of Argentina and Chile.
Temperatures will progressively rise through the weekend with highs eclipsing normals by 6 to 12 degrees C (10 to 20 degrees F) in Santiago, Chile, Buenos Aires and Cordoba, Argentina, and Montevideo, Uruguay.
A high of 15.5 C (60 F) is more common this time of year in Buenos Aires. By the end of the weekend, temperatures will rise into the lower 20s C (lower 70s F).
An even warmer Monday will unfold in most communities.
The warmth will combine with abundant sunshine and low humidity to create perfect conditions for those with outdoor plans and sporting events this weekend.
While the timing of the sunshine and warmth is ideal for weekend activities, Miller pointed out that Santiago and central Chile could use some rain.
"Santiago is coming out of its rainy season, which was significantly drier than normal."
Only 37 percent of the typical 247 mm (9.72 inches) fell at Santiago since the start of May. Throughout July, a month that averages 76.2 mm (3 inches), the city recorded only two days of measurable rain for a monthly total of 20.4 mm (0.80 of an inch).
"Gloomy and stormy weather this weekend will remain confined to southern Chile," Miller added.