On Wednesday, February 18, 2026, the weather forecast for San Nicolás de los Arroyos in Buenos Aires predicts a maximum temperature of 33°C and a minimum of 21°C. According to the National Meteorological Service (SMN), winds are expected to be light at 11 km/h, with an average humidity of 79%. The forecast indicates no precipitation in the early hours of the morning, with humidity remaining high at 79% and light easterly winds anticipated.

As the morning progresses, the weather report suggests that light drizzle may occur, measuring approximately 1 mm, alongside a slight drop in humidity to 74% and winds remaining light at 10 km/h from the east. For the afternoon and evening, the forecast specifies no precipitation expected, with light winds from the northeast at 9 km/h, allowing residents to enjoy a dry but humid evening.

However, as night falls, moderate rainfall is predicted, reaching up to 6 mm. This shift in weather conditions indicates a transition from a warm day to a potentially wet evening, reinforcing the importance of staying updated with local weather developments as the day progresses, especially for outdoor plans.