According to the Old Farmer’s Almanac, winter in Des Moines and the Heartland is set for some big changes! 🌐 #News #MDesMoines #Weather #WinterForecast. DES MOINES, IA – The Old Farmer’s Almanac has released its long-range winter forecasts, revealing a shift from last year’s predictions for Iowa and the Heartland. This forecast covers much of Iowa, Missouri, eastern Kansas, and Nebraska. Usually known for its cold, snowy winters, cities like Des Moines, St. Louis, Kansas City, Omaha, and Topeka often brace themselves for months of chilly weather. But this year, residents might be in for a surprise-a warmer-than-usual winter is on the way.