NWS Forecast for McLean VA

National Weather Service Forecast for: McLean VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.

Updated: 9:52 am EST Nov 1, 2026

This Afternoon Partly Sunny	Tonight Partly Cloudy	Monday Partly Sunny	Monday Night Mostly Clear	Tuesday Sunny	Tuesday Night Mostly Clear	Wednesday Mostly Sunny	Wednesday Night Partly Cloudy then Slight Chance Rain	Thursday Rain Likely
Hi 64 °F	Lo 46 °F	Hi 67 °F	Lo 46 °F	Hi 71 °F	Lo 51 °F	Hi 74 °F	Lo 58 °F	Hi 73 °F

This Afternoon	Partly sunny, with a high near 64. Calm wind.
Tonight	Partly cloudy, with a low around 46. Calm wind.
Monday	Partly sunny, with a high near 67. Calm wind becoming south around 6 mph in the morning.
Monday Night	Mostly clear, with a low around 46. Calm wind.
Tuesday	Sunny, with a high near 71. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night	Mostly clear, with a low around 51.
Wednesday	Mostly sunny, with a high near 74.
Wednesday Night	A slight chance of rain after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.
Thursday	Rain likely, mainly after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Thursday Night	Rain likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday	A chance of rain. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
Friday Night	A chance of rain. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Saturday	A slight chance of rain. Partly sunny, with a high near 67. Chance of precipitation is 20%.

Forecast from NOAA-NWS for McLean VA.