Dense fog will cover almost the entire country. IMGW has issued warnings.

The Polish Meteorological Institute warns of dense fog affecting much of the country until Sunday morning, with alerts issued for 14 provinces. The fog may cause visibility to drop below 200 meters and could lead to slippery road conditions due to frost. Alerts are in effect from Saturday at 6 PM until Sunday at 11 AM, indicating potential hazardous weather conditions that could pose risks to health and safety.