Dc Weather 20 Day Forecast 2025 Calendar. See the long range weather forecast for washington dc, check the 30 days forecast view, select a month and get the average expected weather for washington dc. At least a few inches of snow are likely, but accumulation will depend on how long it takes rain.

A risky day is not a direct prediction of precipitation (rain/snow) but instead a forecast of ideal conditions. At least a few inches of snow are likely, but accumulation will depend on how long it takes rain.