Weather extremes partly determine the mood in the grain markets. The cold in the US had already been largely priced in. Now it is the extreme cold in Ukraine and Russia that is worrying analysts. On the other side of the world, in South America, it is not 30 degrees below but over 30 degrees above zero, causing heat stress in the crops. Geopolitical developments, specifically Trump's 'armada' heading to Iran, are mainly affecting oil. Some see this as a potential indicator for developments in the grain markets.