National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

51°F

11°C

Humidity 89%
Wind Speed Calm
Barometer 30.02 in (1016.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 10 Mar 2:52 am EDT
Extended Forecast for

Mc Lean VA

  • Overnight

    Overnight: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. South wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 80. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before midnight, then a chance of rain between midnight and 1am, then showers likely after 1am. Mostly cloudy, with a low around 52. South wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 54. Breezy. Chance of precipitation is 60%.

    High: 54 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 49. Calm wind.
Tuesday
Sunny, with a high near 80. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 61. South wind 3 to 5 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 80. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers before midnight, then a chance of rain between midnight and 1am, then showers likely after 1am. Mostly cloudy, with a low around 52. South wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Thursday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 54. Breezy. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 55.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly cloudy, with a high near 66.
Sunday Night
Showers. Low around 47. Chance of precipitation is 80%.
Monday
Showers. High near 56. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean VA
 38.95°N 77.19°W (Elev. 253 ft)
Last Update:
1:54 am EDT Mar 10, 2026
Forecast Valid:
3am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation