On Wednesday, February 18, 2026, the weather in San Isidro, Buenos Aires, is expected to be warm, with a maximum temperature of 30°C and a minimum temperature of 22°C. According to the National Meteorological Service (SMN), the conditions will feature light winds at around 18 km/h from the east and an average humidity of 86% throughout the day.

In the morning, there will be no anticipated precipitation, and humidity is expected to remain high at 86%. Light winds of 18 km/h from the east will prevail during the early hours, with humidity slightly dropping to 79% by mid-morning, while still maintaining dry weather.

For the afternoon and evening, the forecast remains dry with light winds expected to be around 16 km/h in the afternoon and increasing to 19 km/h in the evening, along with no predictions of rainfall. Overall, the weather is indicative of a warm, humid day without significant weather disturbances, making it suitable for outdoor activities.