National Weather Service Forecast for: McLean VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 12:53 am EST Dec 5, 2025
 
Overnight

Overnight: Snow, mainly after 3am.  Low around 23. East wind around 6 mph.  Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Snow
Friday

Friday: Snow, mainly before 8am.  High near 32. East wind around 5 mph becoming calm  in the afternoon.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Snow then
Chance Snow
Friday
Night
Friday Night: Patchy fog before 1am, then patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 24. Calm wind.
Patchy Fog
Saturday

Saturday: Partly sunny, with a high near 42. Light southwest wind.
Partly Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 27. Light and variable wind.
Partly Cloudy
Sunday

Sunday: Partly sunny, with a high near 42.
Partly Sunny
Sunday
Night
Sunday Night: Mostly cloudy, with a low around 27.
Mostly Cloudy
Monday

Monday: Mostly sunny, with a high near 35.
Mostly Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 20.
Mostly Clear
Lo 23 °F Hi 32 °F Lo 24 °F Hi 42 °F Lo 27 °F Hi 42 °F Lo 27 °F Hi 35 °F Lo 20 °F

Hazardous Weather Outlook
Winter Weather Advisory
 

Overnight
 
Snow, mainly after 3am. Low around 23. East wind around 6 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Friday
 
Snow, mainly before 8am. High near 32. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
 
Patchy fog before 1am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Saturday
 
Partly sunny, with a high near 42. Light southwest wind.
Saturday Night
 
Partly cloudy, with a low around 27. Light and variable wind.
Sunday
 
Partly sunny, with a high near 42.
Sunday Night
 
Mostly cloudy, with a low around 27.
Monday
 
Mostly sunny, with a high near 35.
Monday Night
 
Mostly clear, with a low around 20.
Tuesday
 
Mostly sunny, with a high near 39.
Tuesday Night
 
Mostly cloudy, with a low around 30.
Wednesday
 
Mostly cloudy, with a high near 47.
Wednesday Night
 
A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.
Thursday
 
A chance of rain. Partly sunny, with a high near 45. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for McLean VA.