A large area of low pressure with impact our area tomorrow into Monday. Clear skies tonight will allow temperatures to drop into the low to mid 20s by tomorrow morning. Clouds will quickly thicken by daybreak, sealing out any sunshine, and preventing much of a warm up tomorrow. So as moisture arrives there is the chance of a wintry mix, mainly sleet and snow, from about 8AM until 3PM. The best chance of a daytime mix would be for the DC Metro and areas north and west. While any accumulation would be minor, this could produce some isolated slick spots.
By 8PM steady rain will start to move in from west to east. Temperatures north and west of Montgomery and Fairfax Counties could still be cool enough to support a mix with freezing rain and sleet. However, temperatures will continue to warm overnight and change everything over to all rain by midnight. Moderate rain will continue into the Monday morning commute with temperatures in the mid to upper 30s. Cancellations from this storm appear unlikely but some delays are certainly possible, especially in West Virginia and counties in Maryland bordering PA.
Rain ends early Monday afternoon with some snow possibly mixing in as it does so. Another shot of cold air arrives Monday afternoon with windy conditions. Most of the coming week will be five to ten degrees colder than average.
Tonight: Clouds Increase & Chilly
Low: 26, Low 20s in the suburbs
Sunday: Chance Wintry Mix during the day, especially DC Metro and areas west and north, otherwise Cloudy
Sunday Night: Rain, Wintry Mix possible north and west of DC Metro. All Rain by 2AM
Monday: Showers during the morning come to an end during the early afternoon. Windy late