Thursday will be cloudy, with rain expected in many areas overnight and sleet or snow possible in some eastern regions, according to the Latvian Environment, Geology and Meteorology Centre.
By morning, precipitation will persist only in isolated areas, but it will become more widespread again in the evening.
Fog will develop in some eastern regions overnight and during the morning, reducing visibility.
Light to moderate southerly and southwesterly winds will prevail overnight, shifting to southerly and southeasterly during the day.
Winds will become gusty along the Baltic Sea coast during the second half of the night, spreading to other coastal areas during the day.
Overnight temperatures will fall to between 0°C and +5°C, while daytime temperatures will reach +1°C to +6°C.
Friday will remain cloudy, although some sunshine is expected in places during the day.
Sleet and rain are forecast across most of the country. Thunderstorms and heavy downpours are also possible in some western regions.
The Latvian Environment, Geology and Meteorology Centre warns that roads may become slippery in certain areas.
Moderate to moderately strong southerly and southwesterly winds will gradually shift to the southwest and west from the morning, with gusts reaching 15–18 metres per second in coastal areas.
During the night, wind gusts along parts of the Baltic Sea coast could reach 20–22 metres per second.
Overnight temperatures will drop to between 0°C and +2°C, while daytime temperatures will rise to +2°C to +7°C.
Saturday will be mostly cloudy, although skies are expected to clear in many areas during the day.
Rain and sleet will affect much of the country, and roads may be slippery in places.
Thunderstorms are also possible in some western regions overnight.
Moderate to moderately strong southwesterly and westerly winds will prevail, with gusts reaching 15–19 metres per second along the coast overnight and across many parts of the country during the day.
Overnight temperatures will range from 0°C to +5°C, while daytime highs will reach +2°C to +7°C.
Winds will remain gusty on Sunday but are expected to begin easing at the start of next week.
Temperatures will remain similar to those recorded in previous days.
Skies will be mostly cloudy, although temperatures could fall below 0°C overnight in areas where the clouds clear.
Occasional rain is also expected, according to the Latvian Environment, Geology and Meteorology Centre.