BALTIMORE, Md. – A damp and chilly weekend is setting up across Maryland, northern Virginia, and the District as October’s first true fall cold snap grips the region. Residents from Baltimore to Washington, D.C., should brace for periods of heavy rain, potential tidal flooding, and the season’s first widespread frost risk by early Sunday.
According to the National Weather Service Baltimore/Washington office, a Frost Advisory remains in effect for parts of Harford and Cecil Counties, while a Coastal Flood Watch includes Anne Arundel County through Friday evening. Tidal flooding may persist through the weekend, especially along the Patapsco and Potomac Rivers, and drivers along I-95 should plan for slick roads and slower travel.
Saturday brings increasing clouds with rain moving inland after midday. Rain chances climb to 70 percent by Saturday night as cooler air filters in. Gusty east winds up to 20 mph may cause minor tree and power line stress. Sunday stays gray and damp with highs in the mid-60s, followed by a cooler and drier Columbus Day.
Travelers should secure outdoor decorations, check sump pumps, and protect tender plants ahead of frost formation. Those planning pumpkin patch outings or leaf-viewing trips should expect soggy grounds through early Monday.
The region will finally dry out midweek, but a crisp, classic October chill will linger.
Five-Day Forecast for Washington, DC:
Fri: 66/53 – Clouds increasing; mild breeze from the southeast.
Sat: 71/61 – Showers developing; gusty winds near 20 mph.
Sun: 65/56 – Periods of rain; breezy and cool.
Mon (Columbus Day): 62/54 – Gradual clearing; lingering drizzle early.
Tue: 64/50 – Mostly sunny and cool; refreshing fall air.
