What is the weather like in Białystok right now?
It is currently 18°C in Białystok with light drizzle. It feels like 17°C, humidity is 68% and the wind is SSW 12 km/h.
Today (Saturday) reaches a maximum of 22°C and a minimum of 14°C, with 4 mm of rain and 4.1 hours of sunshine. Sunrise is at 05:32 and sunset at 19:24.
Białystok weather tomorrow
Tomorrow (Sunday) the maximum temperature in Białystok is 23°C and the minimum 14°C. Around 0 mm of rain is expected with 7.9 hours of sunshine, and the chance of rain is 3%. The data is refreshed several times a day through Open-Meteo.
Białystok weather this week and next week
Over the coming week the average maximum temperature in Białystok sits around 22°C and the average minimum around 14°C. Roughly 12.8 mm of rain is expected, spread across 3 days, with 0 largely sunny days.
The warmest day in the 14 day forecast for Białystok is Monday 31 Aug at 25°C. The coldest night falls on Thursday 10 Sept at 10°C. Click any day for hourly detail.
Rain, sunshine and UV in Białystok
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 Białystok is 5, 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 Białystok last updated: 29 August 2026 at 14:25. See also all Poland forecasts and the European weather map.