Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Big Bear City area. Forecasts are calling for sunny skies and expected to hold steady in the low 40s all week. Bear Mountain and Snow Summit are now open daily to the public for the 20/21 season. November Temperature Big Bear City Airport (3.7 miles) 2020 October November. Orange = Chance of a Winter Storm. See weather overview Detailed Hourly Forecast — Next 24 hours Show weather on: Next 24 hours November 20, 2020 November 21, 2020 November 22, 2020 November 23, 2020 November 24, 2020 November 25, 2020 November 26, 2020 The coldest temperatures will occur in late December, late January, and mid- to late February. Read opening day recap. December 2020. Winter will be cooler and drier than normal, with below-normal mountain snows. February 2021. January 2021. April 2021. Daily Message. Blue = Chance of a Snow Storm. Snow Chance Legend. Red = Chance of a Rain Storm. March 2021. Annual Weather Summary November 2020 to October 2021. United States | Big Bear Lake, California. ... November 2020. COME ENJOY FEWER CROWDS WITH MIDWEEK LAPS.