What is the weather like in Lahti right now?
It is currently 20°C in Lahti with cloudy. It feels like 17°C, humidity is 50% and the wind is SSE 22 km/h.
Today (Saturday) reaches a maximum of 21°C and a minimum of 14°C, with 0.2 mm of rain and 6.9 hours of sunshine. Sunrise is at 06:02 and sunset at 20:34.
Lahti weather tomorrow
Tomorrow (Sunday) the maximum temperature in Lahti is 17°C and the minimum 15°C. Around 3.8 mm of rain is expected with 0 hours of sunshine, and the chance of rain is 100%. The data is refreshed several times a day through Open-Meteo.
Lahti weather this week and next week
Over the coming week the average maximum temperature in Lahti sits around 18°C and the average minimum around 13°C. Roughly 42.1 mm of rain is expected, spread across 5 days, with 0 largely sunny days.
The warmest day in the 14 day forecast for Lahti is Saturday 29 Aug at 21°C. The coldest night falls on Friday 11 Sept at 7°C. Click any day for hourly detail.
Rain, sunshine and UV in Lahti
A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Lahti is 4, which is low to moderate.
How reliable is a 14 day forecast?
The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.
Forecast for Lahti last updated: 29 August 2026 at 14:25. See also all Finland forecasts and the European weather map.