Avellaneda, in Buenos Aires province, is in for a cool day this Monday, October 12, 2026. The national weather service, the SMN, expects temperatures to sit between 10 and 15 degrees. That range points to a brisk spring day for the southern suburbs of Buenos Aires. The report also looks at cloud cover and whether rain might fall during the day. An extended outlook gives residents a sense of how the rest of the week could shape up. Anyone with outdoor plans would do well to check the latest bulletin from the SMN.