2021 Long Range Weather Forecast for Cheyenne, WY

Winter will be milder than normal, with the coldest periods in mid-November, early to mid- and late December, late January, and late February. Precipitation will be above normal in the north and slightly below normal in the south. Snowfall will be above normal in most places, with the snowiest periods in mid-November, early and late December, mid- and late January, mid- to late February, and early March. April and May will see temperatures above normal in the north and below normal in the south, and overall the months will be slightly rainier than normal. Summer will be warmer than normal, with the hottest periods in early and late June, early and mid-July, and early to mid-August. Rainfall will be near to below normal. September and October will have below-normal temperatures, with precipitation below normal in the north and above normal in the south.