On Sunday, a high-pressure system will move over Åland Islands towards Estonia's coast. The weather will be predominantly dry and moderately cold across Finland, Scandinavia, and the Baltic States. The night before Sunday is expected to be partly cloudy and largely dry, with localized fog and winds from the northeast and east, ranging from 2 to 7 m/s, stronger along the coast by up to 9 m/s.

Early on Sunday morning, the sky will remain variable with no significant precipitation anticipated, though some areas may experience fog. Temperatures will range from -12 to -17 degrees Celsius, and under clearer skies, it could even drop to -20 in places, with coastal temperatures ranging from -7 to -11 degrees. As the day progresses, a similar pattern will continue with variable cloudiness and dry conditions.

Temperatures throughout the day will hover between -6 and -12 degrees, with east-northeast winds blowing at 1 to 7 m/s, and on the western coast, winds may strengthen to between 3 to 8 m/s, gusting to 12. As evening approaches, winds are expected to diminish, maintaining the temperate cold environment for the following days ahead.