Cool and dry for much of the Central Plains and Rockies. Showers over the Great Lakes and Ohio Valley.

Unsettled weather conditions are likely across portions of the Great Lakes and Ohio Valley, with scattered to numerous showers. Expect cool and mostly dry conditions across much of the central U.S. and extending westward towards the Rocky Mountains. A few showers will be possible over the Pacific Northwest. Showers will also be possible over mountainous areas of Arizona and New Mexico. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

A Few Clouds

66°F

19°C

Humidity 93%
Wind Speed Calm
Barometer 29.95 in (1014.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 27 Sep 11:52 pm EDT
Extended Forecast for

Mc Lean VA

Flash Flood Watch September 29, 02:00am until September 30, 08:00am
Click here for hazard details and duration
Flash Flood Watch
  • Overnight

    Overnight: Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 60. Calm wind.

    Patchy Fog

    Low: 60 °F

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 74. East wind 6 to 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 74 °F

  • Wednesday
    Night

    Wednesday Night: Showers and possibly a thunderstorm.  Patchy fog. Low around 65. East wind around 8 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Showers and
    Patchy Fog

    Low: 65 °F

  • Thursday

    Thursday: Showers and possibly a thunderstorm.  High near 72. East wind 8 to 10 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Showers

    High: 72 °F

  • Thursday
    Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 64. East wind 6 to 11 mph.  Chance of precipitation is 80%.

    Showers

    Low: 64 °F

  • Friday

    Friday: Showers likely.  Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    Showers
    Likely

    High: 74 °F

  • Friday
    Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 61. Chance of precipitation is 50%.

    Chance
    Showers

    Low: 61 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    Mostly Sunny

    High: 75 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 60.

    Partly Cloudy

    Low: 60 °F

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 60. Calm wind.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. East wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm. Patchy fog. Low around 65. East wind around 8 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Showers and possibly a thunderstorm. High near 72. East wind 8 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday Night
Showers and possibly a thunderstorm. Low around 64. East wind 6 to 11 mph. Chance of precipitation is 80%.
Friday
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 72.
Click Map For Forecast
Point Forecast:
Mc Lean VA
 38.95°N 77.19°W (Elev. 253 ft)
10:27 pm EDT Sep 27, 2016
12am EDT Sep 28, 2016-6pm EDT Oct 3, 2016
 
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Additional Resources

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Hourly Weather Forecast

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