ANNANDALE, Va. — A crisp start greeted Northern Virginia early Saturday, with a frosty sheen on lawns under clear skies as colder air settled in before dawn. The National Weather Service has a Frost Advisory in place until 9 a.m. for much of the region, including Fairfax, Arlington, and Prince William counties. Homeowners are urged to shield sensitive plants, secure outdoor spigots, and plan for a couple more brisk mornings before afternoons trend milder early next week.
Forecasters at the NWS office in Sterling expect a calm, mostly sunny day with afternoon highs near 58°F. The early frost should dissipate by midmorning, though shaded spots could remain slick for a while. Sunday and Monday look largely rain-free, with daytime temperatures hovering around 60°F and nighttime lows dipping into the low 40s. A light northeast breeze those evenings will add a sharper feel—great weather for early Halloween decorating or yard cleanup ahead of increasing rain chances by midweek.
Travelers on I-95 and Route 50 should find dry pavement through Monday, but the chillier mornings may necessitate heavier jackets and a few extra minutes to clear frosty windshields. Gardeners and pet owners should keep an eye on conditions late Sunday night, when temperatures in sheltered locations could again flirt with the frost threshold.
By Wednesday, a few spotty light showers may develop, hinting at a cooler, wetter pattern taking shape as Halloween approaches. A brisk November is on the horizon, and this weekend’s frost is just the opening act.
Five-day outlook for Annandale, VA:
– Saturday: High 58°F / Low 40°F — Patchy frost early; mostly sunny and cool.
– Sunday: High 60°F / Low 42°F — Partly sunny; dry with light winds.
– Monday: High 58°F / Low 40°F — Intervals of sun; seasonably cool.
– Tuesday: High 57°F / Low 41°F — Partly cloudy with a gentle breeze.
– Wednesday: High 58°F / Low 43°F — Clouds increasing; 30% chance of light rain late.
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