Query on weather

I was wondering if when you create a flight is the live weather for the flight loaded for the entire flight when you start or is it updated as you go ? The reason I ask is I had an issue landing at EDDP rwy 26, there’s a speed bump on the runway that throws you plane into the air, and when it initially happened the weather was clear not a could to be seen, but when I went back to check if it was a repeatable problem about 5mins later it was pouring with rain and cloudy. Just curious why the weather would be so different.