ANNANDALE, VA – A sharp fall chill is tightening its grip on the Mid-Atlantic this weekend as the region faces its first real frost potential of the season by early Sunday. Commuters and early risers along the I-95 corridor should brace for slippery bridges, reduced visibility, and chilly air dipping into the upper 30s by dawn.
According to the National Weather Service in Baltimore/Washington, a Frost Advisory is in effect for parts of Harford and Cecil counties, with temperatures near freezing expected in rural pockets. A Coastal Flood Watch is also posted for Anne Arundel County through Friday evening as persistent northeast winds push water levels higher along vulnerable shorelines. Forecasters warn that tidal flooding could linger through the weekend, especially near the Chesapeake Bay and tidal Potomac.
Saturday will bring a shift from sunshine to showers, with periods of rain spreading north by afternoon. Gusty east winds near 20 mph may make driving difficult along I-95 and Route 50, especially for high-profile vehicles. Residents should secure loose outdoor decorations, protect sensitive plants, and prepare for a damp, breezy weekend.
By Sunday night, skies will begin to clear, ushering in a more classic October pattern—cool mornings, crisp afternoons, and a stretch of dry, sunny weather into midweek. Perfect conditions will return for pumpkin patch visits and leaf-viewing trips by Tuesday.
Five-Day Forecast for Annandale, VA:
Fri: 65/52 – Sunny; light northeast breeze.
Sat: 70/59 – Showers developing; gusty east wind.
Sun: 64/54 – Rain early, clearing; breezy and cool.
Mon: 56/46 – Mostly cloudy; chance of light showers.
Tue: 68/50 – Partly sunny; mild with fall colors peaking.
