The 10-day span for Sumy runs from a high near 98° on Saturday down to 50° overnight on Friday. About 0.30 in of precipitation is expected in total; the most likely wet day is Wednesday (72% chance). Wind is the one to watch: gusts to 34 mph around Friday. Right now Sumy is about 35° cooler than nearby Nyzhnodniprovsk. Longer view: four distinct seasons, with the biggest swings between high summer and midwinter.
Sumy, Ukraine · 50.92°N, 34.80°E · Europe/Kyiv · Forecast computed for these exact coordinates