Weather
Washington, DC Weather Update: 42°F Lows, Fog Near I-95 Oct 25-26
Washington, DC – Another chilly morning could bring frost to parts of Maryland and northern Virginia early Monday, Oct. 26, extending a period of cold autumn conditions across the Washington Baltimore
By Dylan Reeves · 2026-10-25T08:40:53.197Z
Washington, DC – Another chilly morning could bring frost to parts of Maryland and northern Virginia early Monday, Oct. 26, extending a period of cold autumn conditions across the Washington Baltimore region. While the nation's capital is expected to remain above freezing, surrounding communities away from major cities and the Chesapeake Bay could experience colder temperatures. The National Weather Service is monitoring additional frost potential after issuing an advisory for many locations near and west of Interstate 95 early Sunday.
According to the National Weather Service Baltimore/Washington office, a Frost Advisory was in effect until 9 a.m. Sunday for most areas near and west of I 95. Forecasters also identified the possibility of additional frost late Sunday night into early Monday morning, particularly outside major urban centers and away from the immediate Chesapeake Bay shoreline. The outlook does not establish a new Monday advisory for every location, but it highlights continuing concerns for sensitive vegetation.
Frost Risk Continues Outside Major Cities The coldest conditions are expected in communities where nighttime temperatures fall more sharply than those recorded in downtown Washington. Clear skies and calm or light winds can allow heat to escape from exposed surfaces, creating favorable conditions for frost formation. Rural neighborhoods, open fields and sheltered valleys may experience colder readings than nearby urban areas, even when official forecasts show temperatures remaining above freezing.
Washington itself is forecast to reach approximately 67 degrees Sunday before temperatures fall to around 42 degrees Sunday night. Mostly clear conditions are expected during the evening, with patchy fog developing after midnight. Monday should bring sunshine and temperatures near 70 degrees, while Monday night remains clear with a low around 49 degrees. Those readings indicate a limited frost threat within central Washington compared with colder outlying communities.
Early Morning Travel and Outdoor Impacts The developing frost potential is most relevant for residents maintaining gardens, outdoor flowers and other temperature sensitive vegetation. Plants exposed to near freezing surface temperatures can experience damage even when nearby official air temperature measurements remain slightly above 32 degrees. Residents in locations covered by frost advisories should consider protecting vulnerable plants, especially those growing in open areas.
Travelers along Interstate 95, Interstate 270 and the Capital Beltway should also prepare for locally reduced visibility where patchy fog develops. The Washington forecast identifies fog after midnight Sunday and before 8 a.m. Sunday, but does not indicate widespread hazardous driving conditions or road closures. Motorists encountering fog should reduce speed and allow additional following distance.
Sunshine and Milder Temperatures Return The broader weather pattern becomes considerably more comfortable as the workweek progresses. Monday and Tuesday are both expected to reach approximately 70 degrees in Washington, with sunshine dominating and relatively light winds. Tuesday brings northeast winds around 7 mph before temperatures fall to approximately 47 degrees Tuesday night.
Wednesday, Oct. 28, marks the three day outlook period, with partly sunny skies and temperatures near 67 degrees. No significant precipitation or major storm system appears in the supplied local forecast for that day. Thursday then brings another modest warmup, with afternoon temperatures reaching approximately 72 degrees.
By Friday, temperatures could climb to 76 degrees, followed by a mostly sunny Saturday near 73 degrees. The contrast between the early frost concerns outside major cities and the mild afternoons later in the week illustrates how quickly autumn temperatures can change across the Mid Atlantic.
For now, residents in frost prone communities should monitor updated National Weather Service statements, while those closer to Washington can expect generally dry and increasingly mild conditions.
Have you already moved sensitive outdoor plants inside, or are you waiting for colder temperatures to arrive?
Five Day Weather Outlook Sunday 10/25: Patchy fog before 8 a.m. gives way to mostly sunny skies, with temperatures reaching approximately 67 degrees; calm winds continue before mostly clear conditions and a low around 42 degrees Sunday night.
Monday 10/26: Sunshine dominates the Washington area, with afternoon temperatures reaching approximately 70 degrees and calm winds becoming northwest around 6 mph; clear skies continue Monday night as temperatures fall to around 49 degrees.
Tuesday 10/27: Sunny conditions continue with temperatures near 70 degrees and northeast winds around 7 mph, providing a pleasant afternoon before mostly clear skies and a nighttime low around 47 degrees.
Wednesday 10/28: Partly sunny skies are expected across Washington, with temperatures reaching approximately 67 degrees; mostly cloudy conditions develop Wednesday night as temperatures fall to around 49 degrees, with no significant precipitation indicated.
Thursday 10/29: Partly sunny skies accompany a warmer afternoon, with temperatures climbing to approximately 72 degrees; mostly clear conditions follow Thursday night, with temperatures falling to around 51 degrees.
Extended Weather Outlook Friday, Oct. 30, should bring sunshine and temperatures near 76 degrees, followed by mostly clear skies and a low around 52 degrees.
Saturday, Oct. 31, is expected to remain mostly sunny, with afternoon temperatures reaching approximately 73 degrees.
The supplied National Weather Service forecast does not identify significant rainfall, severe thunderstorms or additional widespread frost hazards through Saturday. No separate six to 10 day outlook was provided.