It's not the electricity cuts that Yulia Hailunas struggles with most after the Russian airstrikes. It's the fact that it's so bitterly cold inside her own home. Like so many Ukrainians, she's had no central heating since Russia launched a wave of targeted attacks on the power grid in January. So Yulia now lives in a long, quilted coat and hat in her flat, and rests her feet on a saucepan-full of hot water to keep them from freezing. If that's not enough, she lifts weights for 10 minutes to get warm. When the weather outside is above zero, it's just about bearable. But later this weekend, the temperature in Dnipro is forecast to plunge below -20C. In Kyiv and elsewhere, it could be colder still. 'That's what's really scary, because all the heating pipes will burst and we won't be able to repair them again. It will be a catastrophe,' Yulia worries. On Thursday, Donald Trump announced that Vladimir Putin had agreed to halt attacks on Ukraine's major cities during the 'horrendously cold' snap, supposedly for a week. The US president called it 'very nice' of his Russian counterpart to agree to an energy truce. However, details were sparse and the Kremlin later clarified that Putin's burst of goodwill expires on Sunday, just as the coldest weather bites. Ukrainians find it hard to trust such declarations, especially since another round of negotiations is scheduled soon but major disagreements persist. For many, including Yulia, the fear that the worst may still lie ahead is palpable.