A severe frost warning is in effect for most of the country. An orange level alert is in effect in southern Latgale, Sēlija and Zemgale, while a yellow level alert is in effect elsewhere.
The skies will be mostly clear, with light winds and fog and frost expected in some places.
The minimum temperature at night will be -22 to-17 C, in some places in the south of the country down to -26 C, while in some places on the coast and in Northern Vidzeme it will be warmer: -16 to -1...